Sending errors and options for eliminating them. Cannot send or receive messages for your email account ISP restrictions on relaying email messages
If sending errors occur during the mailing process, you need to interrupt mailing list, go to "Settings/General settings/SMTP tab" and edit the current settings. Then continue sending: click the black triangle next to the "Start" button and select the required option (resend to those not yet sent or to unsuccessfully sent ones).
If the sending was not stopped and a sending error occurred, you will be shown the reason for the error and advice on how to correct this error. The program provides brief information. You can view full information on our website (the link to the error is under the advice).
551 5.9.9 Spam message discarded. If you feel we mistreat you, do contact us: [email protected]
RSET
You need to write a letter to [email protected] which is your email provider and ask to be added to the white list.
1. Your letter does not pass the spam filters. (try sending a blank email to test this assumption).
2. In the SMTP server settings, the speed and number of streams are too high for this server. (recommended parameters – “Threads” – 1, “Speed” – 1 message per minute).
3. In addition, we recommend using letter personalization so that each letter is perceived by the server as unique. Check out the help on this issue here - - Editing a message - Text substitution.
Problem with login or password
553 5.7.1 < [email protected]>: Sender address rejected: not owned by user [email protected]
RSET
Check with your SMTP provider to see if your email address is registered with them. Send them information about this error and they will tell you what to do.
535-5.7.1 Please log in with your web browser and then try again. Learn more at535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 p2sm808096lbj.4Disconnected.
535 Incorrect authentication data Disconnected.
Note 1
Note 2
535 5.7.1 http://support.google.com/mail/bin/answer.py?answer=14257o5sm1396905lbg.5
Disconnected.
Check your SMTP server settings. Make sure that the username and password are entered correctly. Open “Settings” / “General Settings” / “SMTP”, double-click on the SMTP server address, and in the window that appears, correct the username and password.
Note 1: Make sure CAPS LOCK is turned off - this is important!
Note 2: Some SMTP servers require “ [email protected]” instead of just “user”, clarify these points.
535 5.7.0 Failed. Incorrect username/password
Disconnected.
According to this error message, you have entered an incorrect username/password for the current account.
Check your SMTP server settings. Make sure that the username and password are entered correctly. Open “Settings” / “General Settings” / “SMTP”, double-click on the SMTP server address, and in the window that appears, correct the username and password.
Note 1: Make sure CAPS LOCK is turned off - this is important!
Note 2: Some SMTP servers require “ [email protected]” instead of just “user”, clarify these points.
503: Bad sequence of commands or this mail server requires authentication.
Repeated 503 errors may indicate connection problems. A 503 response from the SMTP server is most often an indication that the SMTP server requires authentication, and you are trying to send a message without authentication (login + password).
Check your current SMTP settings to ensure that your SMTP server settings are correct. Go to the "Settings/General Settings/SMTP tab" menu, double-click on the account listed and specify authentication (usually ESMTP authentication), login and password.
513: Address type is incorrect or authentication required.
Make sure the address email recipient is entered correctly and does not contain errors. Then try resending the message.
Another reason could be that the SMTP server requires authentication, and you are trying to send a message without authentication (usually ESMTP authentication, login + password). Check the current SMTP settings in Settings/General Settings/SMTP Tab to ensure the SMTP server settings are correct.
550 5.4.5 Daily sending quota exceeded. d1sm2839081lbh.7
The daily sending limit has been exceeded.
Check with your SMTP provider for the correct settings for mailing, mailing speed settings and daily limit. You can change these settings in the "Settings/General settings/SMTP tab" menu by double-clicking on the current account. Set the correct sending speed settings in the window that appears.
530: Access denied.
Your provider's SMTP server requires authentication, and you are trying to send a message without authentication (login + password).
Check the current SMTP settings in Settings/General Settings/SMTP Tab to ensure the SMTP server settings are correct.
Another reason could be that your SMTP server is blacklisted by the recipient's server. Or, for example, mailbox the recipient does not exist.
503 sender not yet given
Disconnected.
To solve this error, you need to go to the SMTP server settings and duplicate the email address from the “Login” field in the “Sender Email” field.
535-5.7.1 Username and Password not accepted. Learn more at
535 5.7.1 http://support.google.com/mail/bin/answer.py?answer=14257 gi19sm1293099lab.16
Disconnected.
Check your SMTP server settings. Make sure that the username and password are entered correctly. Open “Settings” / “General Settings” / “SMTP”, double-click on the SMTP server address, and in the window that appears, correct the username and password.
501 sender address must match authenticated user
RCPT TO:
RSET
503 sender not yet given
Disconnected.
or
530 5.1.8
Disconnected.
The problem is that the sender's mailbox does not belong to the SMTP server through which the mailing is carried out. For example, if the SMTP server is smtp.yandex.ru, then the sender address should be [email protected], or if SMTP is smtp.gmail.com, then the sender address must be [email protected].To solve this error, you need to go to the SMTP server settings and duplicate the email address from the “Login” field in the sender’s Email field.
535-5.7.1 Please log in with your web browser and then try again. Learn more at 535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 r8sm4616093lba.15
Log into your account through a browser and make sure that the mailbox is not blocked.
451: Requested action aborted: local error in processing.
This error usually occurs because your ISP is overloaded, or because too many messages have been sent through your SMTP relay.
Invalid address SMTP server or port
Connecting to: first.hosted.in:25
Socket Error #10060
Connection timed out.
In the "Settings/General Settings/SMTP" menu you need to either correct the SMTP address first.hosted.in or change port 25 to another. To find out the port number you need to contact your hosting provider.
Connecting to: smtp.ukr.net:465
Connected.
451 excessive mail rate for unknown mailhub, throttling
Disconnected.
This error usually occurs because your ISP is overloaded, or because too many messages have been sent through your SMTP relay.
The next attempt to send a letter may be successful.
When you send an email message using your home email account while away from home, the message may return with a 550, 553, or relay error. The same thing can happen when you are out of the office and try to send an email using your work email account.
Description
Relaying occurs when an email message is sent to an email address whose domain (the name after the @ symbol, such as adatum.com) is not processed by SMTP or by the outgoing mail server that receives the sender's request to deliver the message. The SMTP server needs to connect to another SMTP server in order to relay the message.
If a relay error occurs while sending an email message, your SMTP (outgoing mail) server may return your message along with an error message like this:
"The message cannot be sent because the server refused to accept the address of one of the recipients. The email contained the address:<адрес эл. почты>. Subject:<тест>, account:<тест>, server:
The exact text of the error message will depend on your Internet service provider. Some providers do not return an error message when they identify outgoing messages as unwanted advertising. In these cases, it looks as if your message is sent normally (in Outlook it remains in the folder Outgoing and appears in the folder Sent), but it is not delivered to the recipient.
Your message was rejected because the SMTP (outgoing mail) server did not recognize you as an authorized user.
SMTP is a protocol (standards used by computers to communicate) that is used by most email servers to send messages on the Internet. If you use an email program (such as Outlook) that allows you to store messages on your computer, you need access to an SMTP server to send messages.
Note: Web-based email systems (such as Windows Live Mail or Yahoo! Mail) work differently and are not covered in this article.
Spam and open relays
Unsolicited advertising messages are called junk mail or spam. The volume of junk mail continues to grow because it costs those sending it virtually nothing to send. In fact, the sender doesn't even have to send the spam through their ISP's SMTP (outgoing mail) server.
When the basic structure of the Internet was created, no one foresaw the consequences of being able to send millions of unwanted messages for a negligible fee. Thanks to the relaying capabilities of SMTP servers, spam senders disguise the true source of spam by passing it through third-party servers that allow such open relays. As a result, the spam appears to come from a site that relays the message and hides the identity of the real sender.
Until recently, most SMTP email servers operated on a trust basis. open system. In such a system, anyone from anywhere can submit a mail message to an SMTP server, and the server must accept it and forward it to the recipient or another mail server that hosts the recipient's mailbox. With this open relay, there are no restrictions preventing anyone from sending mail through the SMTP server.
Internet service provider restrictions on relaying email messages
As spam volumes increased, network administrators (the people responsible for managing Internet service provider servers) began imposing restrictions on their SMTP email servers. These restrictions do not allow everyone to use the mail server. Imagine having a telephone in your organization's lobby that is accessible to everyone, including those outside the organization. Now only employees are allowed to use the phone.
Today, several types of restrictions are used.
SMTP authentication is required. Just as you use a username and password to access the POP3 (incoming mail) server and your mail messages, you are required to enter a username and password to send mail messages through the SMTP server. This is usually the same username and password as for the POP3 server, but can be unique.
You must first connect to your ISP's POP3 (incoming mail) server. To receive your new mail messages, you usually connect to a POP3 (incoming mail) server. To access your mailbox, you need to enter your username and password. Your network administrator can configure the server so that if you connect to the incoming POP3 server first and are authenticated, it will approve all requests to send mail messages through the outgoing SMTP server, which would otherwise be restricted from doing so.
Requires connection from an authorized network location. If you connect to your Internet service provider from home using telephone line, using a cable or via a DSL modem, the connection goes directly to the provider’s network. You are trustworthy because you have an account with a username and password provided by your Internet Service Provider. You as a client are allowed to use the SMTP server to send mail messages.
Requires connection from a specific IP address or range of IP addresses. Your Internet service provider may allow people not directly connected to the network to access the SMTP server. For example it could be remote user in the office. The main problem is that many places use dynamic IP addresses. However, you cannot be sure that you have the same IP address every time you connect. Some organizations may have a block or range of IP addresses reserved. The ISP may consider those connecting from these IP addresses to be verified users. He may be able to provide additional information.
There are a lot of possible relay scenarios. Below are the most common situations. Perhaps one of them is similar to yours.
Situation | Is this a relay? |
|---|---|
|
You're at home and have an Internet Service Provider account ending in @proseware.com that you connect to via dial-up, cable, or DSL modem. You are sending a message to another person, postal address which also ends in @proseware.com. |
|
|
Same as in the first situation, only you are sending a message to a person whose email address ends in @adatum.com. |
Yes, but it doesn't block. You connect directly to the Internet service provider and thereby receive the authority to send mail through their SMTP server (outgoing mail) to any addresses, regardless of the location of the recipient's mailbox. |
|
You are at work. Your work email address ends in @thephone-company.com and you have a home Internet service provider account that ends in @proseware.com that you connect to via dial-up, cable, or DSL modem . You have the same SMTP server settings configured in Outlook as you do at home. You send a message to a person whose email address also ends in @proseware.com. |
No. Your mail is processed as usual. |
|
You are staying at a hotel or using an Internet terminal at the airport that provides Internet access. You have a home ISP account ending in @proseware.com that you connect to via dial-up, cable, or DSL modem. You have the same SMTP server settings configured in Outlook as you do at home. You send a message to another person whose email address also ends in @proseware.com. |
No. Your mail is processed as usual. |
|
Same as in the previous situation, only you are sending a message to a person whose email address ends in @adatum.com. |
Yes, and this message may be blocked as relay mail. You are trying to use your ISP's home SMTP (outgoing mail) server even though you are not connected to their network. The SMTP server cannot authenticate you as an authorized subscriber to your ISP. Additionally, you are asking the SMTP server to accept the message and connect to another SMTP server to deliver it to the recipient's mailbox. |
Solutions
If your situation is considered a relay, you must send the message through the server you are currently connecting to. That is, if you are at work or away from home and do not use your ISP to connect to the Internet, but want to send a message from your home account provided by that provider, you need to change your mail account settings to that SMTP server , which you use where you are (for example, a working SMTP server). Step by step instructions see article.
If this doesn't work or you prefer to use a home account, you'll need to contact your internet service provider and ask if the options described earlier are available to you. Regarding the first two restrictions (requires SMTP authentication and requires first connecting to the ISP's POP3 incoming mail server), you can make changes to Account Settings in Outlook. For instructions, see Change your email account settings.
Messages still not being sent?
You've changed your SMTP settings in Outlook or found a setting that will allow you to send email messages. But you still cannot send mail and receive an error message.
You may have done everything correctly, but network administrators use another security feature to prevent identity spoofing. Identity spoofing is simply a way of sending an email message where you hide who you are.
In Outlook, like most email programs, you can specify a "display name" and a return mailing address that appears when your message is replied to. In junk mail, these fields almost always contain false information. Do you really believe that get-rich-quick messages came from a supermodel or a world leader?
To prevent identity spoofing, some Internet service providers limit the ability to insert false information into the address field of responses. For example, if domain name your ISP ends in proseware.com, your ISP may not allow you to provide a return address [email protected]. This restriction is not as widely used as those previously described, but can apply to all users regardless of their location or connection method. In this case there is no alternative. If the server administrator uses this method, you must specify the domain corresponding to your current connection in the return address.
Solution: Connect your computer to the Internet or network.
Open your web browser to see if you can access sites on the Internet. If you are in local network, check if intranet sites can be opened. Learn how to check status network connections, see Mac OS Help.
Solution: Make sure Outlook is connected to the Internet.
On the menu Outlook see if the checkbox is unchecked Autonomous operation.
Cause: Some POP and IMAP email accounts use an outgoing mail server (SMTP) that requires authentication.
Solution: Enable SMTP authentication for the POP or IMAP account.
Some email services, including iCloud email accounts, require authentication to their SMTP server. If you verify that all account settings are correct, but you are still unable to send messages, try disabling SMTP authentication.
On the menu Service select accounts.
Accounts select an account.
In the section SMTP server select Additional options ...
In the popup menu Authentication Select an authentication type and enter the required credentials.
Cause: Your ISP or network administrator is using a firewall that is blocking connections to the outgoing mail server (SMTP) of your email service.
Solution: Find out if your ISP or network administrator can provide an alternative SMTP server for your POP or IMAP account.
If you have an alternate SMTP server address, specify it in your account settings.
On the menu Service select accounts.
In the left area of the dialog box Accounts select an account.
In the field outgoing mail server enter the server name or address.
Note: When using a laptop in multiple locations, such as at home and at work, the SMTP server that is used in one location may not work in other locations. Everyone to the Internet, with which you may have a firewall with restrictions of your own.
Cause: The account credentials or settings are incorrect.
Solution: Please check that your username, password and other account settings are correct.
On the menu Service select accounts.
In the left area of the dialog box Accounts select an account.
Make sure you have entered the correct email address, username and password.
If your account is still not working properly, contact your email service provider to find out how to set up your account. mail application. Your account may require special settings, such as using SSL for connections or overriding the default port.
Cause: The network requires a proxy server to connect to the mail server.
Solution: specify the mail proxy server in the "System Settings" section on your computer.
If you use networks to connect to the Internet, you may need to specify a mail proxy server. Contact your network administrator for the correct settings for your mail proxy. For instructions on how to enter these parameters, refer to help system Mac OS.
Reason: The email server is unavailable.
Solution: check if the mail server is running.
If you have successfully connected to this account before, the problem may be that the mail server is down. Contact your email service provider or network administrator to see if your email server is running.
The table below lists error messages that you may encounter when using G Suite email services. These messages help you find and fix your email problem.
To indicate the source of the error, Gmail appends one or both of the following to the end of the message:
- gsmtp(Google SMTP): added to All error messages;
- gcdp(G Suite Custom Domain Policies): Added to error messages related to rules created by your G Suite administrator.
For example, the message "550 5.7.1 This message violates example.com's email policy. – gcdp
SMTP protocol error messages
| 421, "4.4.5". The server is busy. Please try again later. |
| 421, "4.7.0". The connection was terminated because the IP was not whitelisted in the RCPT domain. |
| 421, "4.7.0". Unsolicited messages are coming from your IP address with unusual frequency. Mail sent from your IP address is temporarily blocked to protect users from spam. Find out more about. |
| 421, "4.7.0". Temporary problems in the system. Please try again later. |
| 421, "4.7.0". The connection was terminated because the RCPT domain requires TLS. |
| 421, "4.7.0". The connection has been interrupted. Please try again later. This error usually indicates a Denial of Service (DoS) condition for the SMTP relay during the HELO phase. |
| 450, "4.2.1". The user you are trying to send an email to is receiving mail too frequently. Send a message later. If the user is able to receive mail by then, your email will be delivered. |
| 450, "4.2.1". The person you are trying to send mail to is receiving mail at a speed that prevents additional messages from being delivered to them. Send a message later. If the user is able to receive mail by then, your email will be delivered. |
| 450, "4.2.1". The client's peak relay limit has been exceeded. This is a temporary error. For detailed information about restrictions, please read or contact your administrator. |
| 451, "4.3.0". Mail server temporarily rejected the message. |
| 451, "4.3.0". Multiple target domains for a single operation are not supported. Please try again. |
| 451, "4.4.2". Timeout – connection interrupted. |
| 451, "4.5.0". SMTP protocol violation, see RFC 2821. |
| 452, "4.2.2". The recipient's account has expired free space. Invite the recipient to review this article. |
|
452, "4.5.3". The maximum size of domain rules for a transaction has been exceeded. Perform a separate transaction for this recipient. |
| 452, "4.5.3". Your message has too many recipients. Detailed information about message restrictions can be found. |
| 454, "4.5.0". Violation of the SMTP protocol, after STARTTLS no other commands are allowed for the flow, see RFC 3207. |
| 454, "4.7.0". Authentication failed due to a temporary system problem. Please try again later. |
| 454, "5.5.1". The STARTTLS command must not be repeated. |
| 501, "5.5.2". Failed to decrypt the response. |
| 501, "5.5.4", Invalid HELO/EHLO argument, read . |
| 502, "5.5.1". Too many unrecognized commands. |
| 502, "5.5.1". Unused team. |
| 502, "5.5.1". Unrecognized command. |
| 503, "5.5.1". First the EHLO/HELO command. |
| 503, "5.5.1". First the MAIL command. |
| 503, "5.5.1". First up is the RCPT team. |
| 503, "5.7.0". Changes to identification data are prohibited. |
| 504, "5.7.4". Unrecognized authentication type. |
| 530, "5.5.1". Authentication required. |
| 530, "5.7.0". The STARTTLS command is required first. |
| 535, "5.5.4". The optional argument is not allowed for this AUTH mode. |
| 535, "5.7.1". Application password required. |
| 535, "5.7.1". Sign in through your browser and try again. |
| 535, "5.7.1". Username and password not accepted. |
| 550, "5.1.1". The recipient's email account does not exist. Double-check that your email address is correct and that there are no spaces. |
| 550, "5.2.1". The recipient's email account has been disabled. |
| 550, "5.2.1". The person you are trying to send mail to is receiving mail at a speed that prevents additional messages from being delivered to them. |
| 550, "5.4.5". The daily limit for sending messages has been reached. |
| 550, "5.4.5". The client's daily relay limit has been exceeded. For detailed information about restrictions, please read or contact your administrator. |
| 550, "5.7.0". Mail relay is prohibited. |
| 550, "5.7.0". Sending mail is prohibited. This error occurs if the sender's account is locked or not registered in the G Suite domain. |
| 550, "5.7.1". Email quota exceeded. |
| 550, "5.7.1". Invalid relay credentials. |
| 550, "5.7.1". Unsolicited messages are coming from your IP address with unusual frequency. Mail sent from your IP address is blocked to protect users from spam. Find out more about how to send mass mailings. |
| 550, "5.7.1". This message has been classified by the system as potentially unclaimed. To reduce the amount of spam sent to Gmail, this message has been blocked. |
| 550, "5.7.1". The IP address used to send mail does not have permission to send messages directly to our servers. Use your service provider's SMTP gateway to send. |
| 550, "5.7.1". The user or domain from or to whom messages are being sent has a rule that prevents mail you send. To receive additional information Contact your domain administrator. |
| 550, "5.7.1". Mail without authentication from this domain is not accepted. |
| 550, "5.7.1". The client's daily relay limit has been exceeded. For detailed information about restrictions, please read or contact your administrator. |
| 552, "5.2.2". The recipient's email account has exceeded its quota. |
| 552, "5.2.3". The maximum allowed message size has been exceeded. Check out these recommendations. |
| 553, "5.1.2". The recipient's domain could not be found. Check that the recipient's email address is correct and make sure there are no spaces, periods, or other punctuation marks after it. |
| 554, "5.6.0". The email message was not accepted because it is not in a valid format. |
| 554, "5.6.0". The message has exceeded its forwarding limit of 50 times. This may indicate the presence of a mail cycle. |
| 554, "5.7.0". Too many commands without authentication. |
| 555, "5.5.2". Syntax error. |
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