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Sometimes we may receive reports from our targeted visitors that they received feedback when they sent an email. The return is supposedly generated when the subject is present when sending or receiving from the mail server. A return error usually gives the company an idea of the probable cause of the problem. It is desirable to know how to decipher bounce messages in order to direct the client to the correct solution. You can view bounces received through Splunk.
This article will provide you with a list of common failures and mistakes in implementing this action plan.
- Email opt-outs
- Blacklisting, blocked or rejected messages and messages
- Errors 550451
You can view feedback received through Splunk. Below is a list of potentially related return errors and their meaning.
|Return type||Return message < /td>||Back Message||Reason/Value||Solution|
|Bounce message quota/limit (in)||SMTP 421 ( the server is temporarily unavailable)||Temporary failure because our contact queue is full.||Try colspan=”1″, by typing the offer email at the scheduled time.|
|SMTP (“fromemail” 550 special messages per session)||Too many emails sent at once. Email limits exceeded.||Try colspan=”1″ to send email later.|
|Temporary error. The account has been greylisted and will be accepted each time it is redelivered.||Try posting the email again as the wallet is greyed out.|
|SMTP 550 (“fromemail sender” colspan=”1″ rejected)||Email correspondence is incorrect format (full @domain).||Make sure you entered the correct email address. It should be formatted in the most efficient and effective way td colspan=”1″ rowspan=”1″>Permanent and costly errors. The sender is blacklisted at the master user level (he was penalized by the client).||Try to contact someone else’s machine. Your email address may have been accidentally blacklisted.|
|SMTP 550 (“toemail” denied)||Delete invalid personal email address.|
|Return messages related to content (inbox)||SMTP 452 (“toemail ” wanted to know, action canceled: try again – GL/GL)||Temporary error. The account is greylisted and therefore accepted if the delivery recurs normally.||Try sending emails again as the account greylists frequently.|
|SMTP 421 (Temporary deviation. OReverse DNS error for “IP”)||Temporary SMTP Rejected. Frequent failures in PTR record identification. Colspan=”1″||Make sure the new sending IP address has reversed DNS configuration before resending the email.|
|SMTP 552 (Remote MTA $ip: URL included in this message is likely to be blacklisted by Spamhaus DBL See http://www.spamhaus.org/dbl)||URL found in human body blacklisted.||URL- the address has been extracted from the email body with the software removed and resubmitted.|
|SMTP 552 (infected virus rejected)||Cloudmark has detected that the message contains a virus.||Set the ability to unsubscribe from your emails. Check your mailing lists to make sure the recipients are correct. If the message was suspicious, please save a copy of the specific email source and let us know.|
|SMTP 552 (Virus infected topic rejected)||Sending something in a real file format that is not actually allowed by our server (.bat .btm .cmd .net .cpl .dll .exe .lnk .msi .pif .prf .reg . scr .vbs).||Set a custom option to unsubscribe from private email messages. Check your mailing lists to make sure the correct recipients are listed. If the message is currently an error, please save it by simply copying the original email and continuing to let us know.|
|SMTP 554 ( Connection refused – “IP”)||This colspan=”1″ is being rejected primarily due to CSI-based spam.||Check Sender Intelligence (CSI) to see the actual reputation of the sending IP.|
|SMTP (connection 554 rejected Reverse DNS “IP” for probably does not exist)||Permanent failure. You don’t have a PTR record.||The secure server that identifies your email as spam or has your IP address has been blacklisted.|
|Frequent outgoing failures||From554 SMTP connection rejection (rejected due to policy colspan=”1) ” reason)||Blacklisted or identified as probable spam. The recipient’s web server doubts the authenticity of the sender’s message.||Check, but also verify that the reference IP address is in the Spamhaus blacklist policy.|
|Reject SMTP 550 (Recipient $toemail Rejected – ERR016)||Recipient blocked due to spam, blacklist, email restrictions.||Contact my sender to receive internet logs from their side for Checks Make sure the exact reason for the rejection is given by email. Also, it is generally recommended to whitelist your email on the recipient side and the hostname of the mail server in their merge filter. In addition, you may need to resend the email and/or verify that it was delivered.|
|SMTP colspan =”1″ 452 ( Sender ” fromemail ” rejected Too many messages to connect to this ERR034)Download this software now to protect your computer from harmful viruses and malware.|