Gmail is bouncing my incoming messages with "This message does not have authentication information or fails to pass" error.


SYMPTOMS

When sending to a Gmail recipient, Gmail rejects the inbound message and returns a bounce message containing the error message below.

Example:

The message will be retried for another 30 hours.

Reason: Mail Server for gmail.com could not accept your email at this time.

MailEnable will keep trying to deliver this message and will notify you of any progress.

The remote mail server returned the error:

421-4.7.0 This message does not have authentication information or fails to pass

CAUSE

Gmails filtering service requires the sending domain to pass various tests. I.e.: DKIM, SPF or DMARC.  

RESOLUTION

Implement SPF and DKIM on the sending domain to avoid Gmail from rejecting your messages and avoid further delivery failures. SPF does not require any configuration changes within the mail server, but does require you add a DNS entry for the domain.

SPF: http://www.openspf.org/

DKIM: https://www.mailenable.com/documentation/10.0/Enterprise/Domain_-_DKIM_(DomainKeys).html



Product:MailEnable (All Versions)
Article:ME020692
Module:General
Keywords:421-4.7.0,This,message,does,not,have,authentication,information,or,fails,to,pass,gmail
Class:TRB: Troubleshooting (Configuration or Environment)
Revised:Monday, July 23, 2018
Author:
Publisher:MailEnable