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Email being blocked by Recipient Mail Server

  • 1.  Email being blocked by Recipient Mail Server

    Posted 10-29-2020 11:32 PM

    We're having issues sending emails to clients using messagelabs. Our domain is pronvest.com and we're using office 365 for email. I also forwarded an email as attachment to gfeedback@feedback-1.brightmail.com. What's the best way for us to get this cleared up? The error message is below:

    Reported error:

    550 5.0.350 Remote server returned an error -> 553 Message filtered. Refer to the Troubleshooting page at;https://knowledge.broadcom.com/external/article?legacyId;=TECH246726 for more information. (#5.7.1)

    DSN generated by:

    MWHPR1101MB2350.namprd11.prod.outlook.com

    Remote server:

    server-28.tower-346.messagelabs.com



  • 2.  RE: Email being blocked by Recipient Mail Server

    Posted 17 days ago

    This is now happening again!