|This guide refers to email bounce back messages.|
You can determine the severity by the failure on the first number for the status code.
Status: 4.X.X -> means that it is a hard bounce where it could be a nonexistent email or mail server saying no, and they will need to get in touch with the person to correct this
This email has not been delivered to the recipient email@example.com. Full details from recipients mail service:
Action: failed Final-Recipient: rfc822; firstname.lastname@example.org Diagnostic-Code: smtp; 550 5.5.0 Requested action not taken: mailbox unavailable. [VE1EUR02FT011.eop-EUR02.prod.protection.outlook.com] Status: 5.5.0 Diagnostic-Code: smtp; 550 5.5.0 Requested action not taken
If this is not enough, refer to the below when dealing with queries on servers and how emailing works:
Our server's are hosted on the amazon server so the IPv4 address is handled by Amaznon.
We use amazon SES and send to their end point, where amazon then handle all communication from there.
Sometimes email communcation may be bounced due to blacklisting - As some people send malicious content through SES, and we are all sharing these servers, when amazon kills the server and creates a new instance, this creates a new IPv4 address making it rolling.
Our team recommend the IT person might want to refer to the amazon SES documentation to handle when the Ipv4 address changes to improve this further if needed.
Bounced Emails - Troubleshooting
Modified on: Tue, 26 Jun, 2018 at 10:18 AM
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