Email Security.cloud

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  • 1.  521 Service Temporarily Unavailable

    Posted Jan 14, 2018 01:56 PM

    Hi,

    A client using my server for emails is having issues sending emails to a client using your service. The errors are:

    Jan 14 18:03:41 trs1 sendmail[25134]: w09HNgxC021984: to=<xxxxx.xxxxx@MCGA.GOV.UK>, 
    delay=5+00:39:59, xdelay=00:00:01, mailer=esmtp, pri=11011575, relay=cluster3a.eu.messagelabs.com. [85.158.139.103], 
    dsn=4.0.0, stat=Deferred: 421 Service Temporarily Unavailable

    Can you see if our IP has been temporarily blacklisted or why their emails are not getting through please??
    The IP server address is 52.50.18.49

    Kind Regards
    Tony 



  • 2.  RE: 521 Service Temporarily Unavailable

    Posted Jan 15, 2018 12:32 PM

    Submit a sample of the email that's blocked to:

    investigation@review.symantec.com 

    reference link: http://www.symantec.com/docs/TECH82881