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  • 1.  (connect to cluster3a.eu.messagelabs.com:25: Connection timed out)

    Posted May 18, 2016 01:38 AM

    good afternoon.
    my server just can not send messages to you.

    @ Blplaw.com>, Result: delayed, Status: 4.4.1 Can not connect to host, Remote-Host: cluster3a.eu.messagelabs.com

    my address - 178.89.247.36
    blacklisted it does not appear

    Thanks for help



  • 2.  RE: (connect to cluster3a.eu.messagelabs.com:25: Connection timed out)

    Posted Jul 05, 2016 02:43 PM

    I am also having problems sending emails to cluster3.eu.messagelabs.com and my mail server IP address is not blacklisted either.  If a Symantec employee reads this, can you please PM me and check the reputation of my mailserver IP address?



  • 3.  RE: (connect to cluster3a.eu.messagelabs.com:25: Connection timed out)
    Best Answer

    Posted Nov 03, 2016 06:53 AM

    Hi,

    Sorry for the late reply. I can confirm that the reputation of that IP is good and the IP 178.89.247.36 is not on any internal blacklist. I can also confirm that you should not be trying to connect to cluster3a.eu.messagelabs.com, this MX record will always be the second MX record and should not be used for sending emails. Emails should always connect to the Primary MX record cluster3.eu.messagelabs.com. If a customer of ours is using that cluster their MX configuration should always be as follwed:

    10 cluster3.eu.messagelabs.com

    20 cluster3a.eu.messagelabs.com

    All emails will route through the primary cluster and the second MX is never used.

    Please do let me know if you need any further information.

    Kind regards

    Kevin Brosnan



  • 4.  RE: (connect to cluster3a.eu.messagelabs.com:25: Connection timed out)

    Broadcom Employee
    Posted Nov 07, 2016 05:56 AM

    Hello tpmurdock,

    Apologies it seems this forum thread was marked as resolved without a response being sent to you. If you reply to me with your IP address I will check it and get back to you.

    Kind regards,

    Mark



  • 5.  RE: (connect to cluster3a.eu.messagelabs.com:25: Connection timed out)

    Broadcom Employee
    Posted Nov 07, 2016 08:32 AM

    Hello tpmurdock,

    Thank you for the PM with your IP address. I have now adjusted the reputation of your IP so you should not have any further issues.

    Kind regards,

    Mark



  • 6.  RE: (connect to cluster3a.eu.messagelabs.com:25: Connection timed out)

    Posted Nov 07, 2016 09:13 AM

    Thank you, I appreciate it.