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SocketLabs Inbound SMTP Gateway Errors

SocketLabs does not reject connections to our platform!

If for any reasons we are not accepting connections from an IP address, the SocketLabs receiving infrastructure would return an SMTP error code. You should be able to view any errors returned by SocketLabs in your mail system error logs. If your mail system does not log errors, or you do not have access to view the logs, you can always check the status of our Platform here: status.socketlabs.com

Please see the below list of error codes returned by the SocketLabs platform, and their associated articles, for an explanation of the error, and how to troubleshoot the issue. 

Temporary Failures

Permanent Failures