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Temporary server error. Please try again later ATTR5

Discussion in 'E-mail Discussions' started by Cemil Sedefoglu, Nov 21, 2016.

  1. Cemil Sedefoglu

    Cemil Sedefoglu Registered

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    Hello,

    We have a problem about sending email to Office 365 - outlook.com users. You can see the sample error code below. I have contacted with Office 365 and our ip is not blacklisted on their side. What can be the cause and the solution?

    Thank you.
    Code:
    2016-11-21 13:15:23 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1c8lca-0007Th-6S
    2016-11-21 15:29:13 cwd=/usr/local/cpanel/whostmgr/docroot 4 args: exim -v -M 1c8lca-0007Th-6S
    +++ 1c8lca-0007Th-6S has not completed +++
    2016-11-21 13:15:23 1c8lca-0007Th-6S <= ozgea@domainnamexxxx.com.tr H=(LAPTxxxx) [78.188.55.65]:49947 P=esmtpa A=dovecot_login:eek:zgea@domainnamexxxx.com.tr S=2045869 id=007101d243df$fcfca730$f6f5f590$@domainnamexxxx.com.tr T="FW: Yakamoz Oguz l- new orders 4102 4103 4104 DELIVERY" for invoices@cuxxxxxx.nl m.van@gmxxxxxx.com
    2016-11-21 13:15:23 1c8lca-0007Th-6S SMTP connection outbound 1479723323 1c8lca-0007Th-6S domainnamexxxx.com.tr m.van@gmxxxxxx.com
    2016-11-21 13:15:23 1c8lca-0007Th-6S SMTP connection outbound 1479723323 1c8lca-0007Th-6S domainnamexxxx.com.tr invoices@cuxxxxxx.nl
    2016-11-21 13:15:33 1c8lca-0007Th-6S SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 13:15:34 1c8lca-0007Th-6S SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 13:15:44 1c8lca-0007Th-6S == invoices@cuxxxxxx.nl R=dkim_lookuphost T=dkim_remote_smtp defer (-45) H=cumlaudy-XXXXX.mail.eo.outlook.com [94.245.120.74]: SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 13:15:44 1c8lca-0007Th-6S == m.van@gmxxxxxx.com R=dkim_lookuphost T=dkim_remote_smtp defer (-45) H=gsxxxx.com.mail.protection.outlook.com [213.199.154.106]: SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 13:50:06 1c8lca-0007Th-6S SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 13:50:06 1c8lca-0007Th-6S SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 13:50:16 1c8lca-0007Th-6S == invoices@cuxxxxxx.nl R=dkim_lookuphost T=dkim_remote_smtp defer (-45) H=cumlaudy-XXXXX.mail.eo.outlook.com [213.199.154.138]: SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 13:50:16 1c8lca-0007Th-6S == m.van@gmxxxxxx.com R=dkim_lookuphost T=dkim_remote_smtp defer (-45) H=gsxxxx.com.mail.protection.outlook.com [213.199.154.106]: SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 14:42:50 1c8lca-0007Th-6S SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 14:42:50 1c8lca-0007Th-6S SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 14:43:00 1c8lca-0007Th-6S == m.van@gmxxxxxx.com R=dkim_lookuphost T=dkim_remote_smtp defer (-45) H=gsxxxx.com.mail.protection.outlook.com [213.199.154.106]: SMTP error from remote mail server after MAIL FROM: SIZE=2077489: 451 4.4.4 Temporary server error. Please try again later ATTR5
    2016-11-21 14:43:03 1c8lca-0007Th-6S H=cumlaudy-XXXXX.mail.eo.outlook.com [213.199.154.138] Connection refused
    
    [​IMG]
     
    #1 Cemil Sedefoglu, Nov 21, 2016
    Last edited by a moderator: Nov 21, 2016
  2. rpvw

    rpvw Well-Known Member

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    Looks like you may not be the only one

    You can search for " Temporary server error. Please try again later ATTR5 " in a search engine and you will get links like this one 451 4.4.4 Temporary server error. Please try again later ATTR5

    An older thread from MS suggested it was something to do with their licensing, and yet other blamed firewalls. Perhaps you need to do some further checks.
     
    #2 rpvw, Nov 21, 2016
    Last edited: Nov 22, 2016
  3. cPanelMichael

    cPanelMichael Forums Analyst
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  4. inspyre

    inspyre Member

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    Also having this issue, as are many people. It seems to be a problem with Outlook 365's security certificates failing Postfix's certificate verification.

    I suppose we could turn this feature off somehow - does anyone from cPanel know how we might go about that?

    As another alternative for anyone having the same issue, I have temporarily set up an email relay, until this issue is fixed.

    My new problem though, is that some of the IPs our SMTP relay provider uses have been blacklisted by some spam lists (because of spam by their other customers).

    I'm not familiar enough with Exim configuration to know how to do the following (and can't find anything in Google), but it feels like it should be possible. If anyone has any idea how to configure cPanel so that it sends email through our local mail server by default, and uses the relay for emails that have received the 451 error, that would be the perfect solution. Does anyone know how to set that up, or know an email technician that may be able to help?

    Thanks!
     
  5. kona333

    kona333 Member

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    Anyone have any updates on this? I'm going on four days with this problem and no one at Microsoft gives a damn (they won't even reply) because for the majority of users it seems to be fixed. Not me though!

    Is it possible to set up an SMTP relay for ONLY the emails that go to Office 365 servers? At least I can get them out of the queue for a while.

    Or some way of testing and verifying if it's the Postfix certificate verification that's causing the issue? Thanks.
     
  6. inspyre

    inspyre Member

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    No updates from anyone - rather frustrating! Emails are still sitting in our mail queue, manually clearing them out through the relay several times each day, but we can't keep this up forever.

    Would appreciate hearing back from someone at cPanel and whether there's a fix we can implement on the cPanel end for this? I know it's Microsoft's fault, but it seems to be a widespread problem for cPanel users.
     
  7. kona333

    kona333 Member

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    I probably need to set up a relay as well then because I've had emails queue for almost a week now.
    It does appear to be with Microsoft. I'm able to reach some office office users, but none on a certain IP range (which is what everyone in my country uses). Those on that Ip range don't resolve from pinging either.

    However, according to Office 365 support the emails aren't reaching their server at all. So the ND message isn't coming from Microsoft, it's coming from cpanel. Any chance of cpanel support giving some info on what this error really means?
     
    vhin992 likes this.
  8. inspyre

    inspyre Member

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    This issue seems to have finally been fixed. My email queue has been clear for the last hour. Hopefully it's fine for everyone else now too :D
     
  9. kona333

    kona333 Member

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    Same here, as of about 2 hours ago it started moving.
     
  10. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    I'm happy to see the issue is now addressed. This does not appear related to any Exim configuration values, and instead looks to have related to an issue with Microsoft's servers.

    Thank you.
     
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