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Receiving but unable to send email

tryingwebman
I can receive emails fine but when sending i get a bounce back now almost instantly. When this started i could check the Mail Queue manager and see the emails i attempted to send when clicking deliver selected i would receive the error: Spool file is locked (another process is handling this message) Doe anybody have any suggestions on fixing this issue? I have googled tirelessly but a lot of the problem were not exactly the same as mine so i didn't want to apply a fix which may cause more problems down the line. Everything was working perfectly this seams to have happened out of no where.

Comments

12 comments

Date Votes
  • 24x7server
    Hello, Can you please let us know what exact error are you getting in bounce back mail ? Also you have root access of your server so you can check your mail server logs with the following command.
    cat /var/log/exim_mainlog | grep message-ID
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  • tryingwebman
    The bounce back error is,
    This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: name@domain.com retry time not reached for any host after a long failure period Reporting-MTA: dns; server.domain.com Action: failed Final-Recipient: rfc822;name@domain.com Status: 5.0.0 From: Name Date: 6 December 2015 at 12:09:31 GMT To: name@domain.com Although it says long failure period this happens instantly. Please find below the result of issuing: cat /var/log/exim_mainlog | grep message-ID Hopefully this is what you need please bare with me I'm a linux noob and still learning. 2015-12-06 11:06:18 1a5bpK-0004aS-RA User 0 set for local_delivery transport is on the never_users list 2015-12-06 11:06:18 1a5bpK-0004aS-RA == root@servername.domain.com R=localuser T=local_delivery defer (-29): User 0 set for local_delivery transport is on the never_users list 2015-12-06 11:06:18 1a5bpK-0004aS-RA ** root@servername.domain.com: retry timeout exceeded 2015-12-06 11:06:18 cwd=/var/spool/exim 7 args: /usr/sbin/exim -t -oem -oi -f <> -E1a5bpK-0004aS-RA 2015-12-06 11:06:19 1a5bpK-0004bD-UG <= <> R=1a5bpK-0004aS-RA U=mailnull P=local S=1912 T="Mail delivery failed: returning message to sender" for root@servername.domain.com 2015-12-06 11:06:19 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1a5bpK-0004bD-UG 2015-12-06 11:06:19 1a5bpK-0004bD-UG User 0 set for local_delivery transport is on the never_users list 2015-12-06 11:06:19 1a5bpK-0004bD-UG == root@servername.domain.com R=localuser T=local_delivery defer (-29): User 0 set for local_delivery transport is on the never_users list 2015-12-06 11:06:19 1a5bpK-0004bD-UG ** root@servername.domain.com: retry timeout exceeded 2015-12-06 11:06:19 1a5bpK-0004aS-RA Completed 2015-12-06 11:06:19 1a5bpK-0004bD-UG root@servername.domain.com: error ignored 2015-12-06 11:06:19 1a5bpK-0004bD-UG Completed 2015-12-06 11:06:35 1a5bgS-0004TS-3s H=mx3.hotmail.com [207.46.8.167] Connection timed out 2015-12-06 11:06:40 SMTP connection from [222.222.22.222:50183 (TCP/IP connection count = 1) 2015-12-06 11:06:41 1a5bph-0004bS-2H <= username@domain.com H=bcdd5cdf.provider.com ([111.111.1.11]) [222.222.22.222:50183 P=esmtpsa X=TLSv1:DHE-RSA-AES256-SHA:256 CV=no A=dovecot_plain:username@domain.com S=651 id=3FAE8D3E-C011-4C3E-8FF6-B361488AD4E7@domain.com T="Test" for username@msn.com 2015-12-06 11:06:41 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1a5bph-0004bS-2H 2015-12-06 11:06:41 1a5bph-0004bS-2H SMTP connection outbound 1449418001 1a5bph-0004bS-2H domain.com username@msn.com 2015-12-06 11:06:41 1a5bph-0004bS-2H ** username@msn.com R=dkim_lookuphost T=dkim_remote_smtp: retry time not reached for any host after a long failure period 2015-12-06 11:06:41 cwd=/var/spool/exim 7 args: /usr/sbin/exim -t -oem -oi -f <> -E1a5bph-0004bS-2H 2015-12-06 11:06:41 1a5bph-0004bb-9L <= <> R=1a5bph-0004bS-2H U=mailnull P=local S=1950 T="Mail delivery failed: returning message to sender" for username@domain.com 2015-12-06 11:06:41 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1a5bph-0004bb-9L 2015-12-06 11:06:41 1a5bph-0004bS-2H Completed 2015-12-06 11:06:41 1a5bph-0004bb-9L => username R=virtual_user T=virtual_userdelivery 2015-12-06 11:06:41 1a5bph-0004bb-9L Completed
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  • cPanelMichael
    Hello :) The message you provided suggests the remote mail server is blocking connection attempts from your server. You can try testing the connection via the following command from your server:
    telnet mx3.hotmail.com 25
    Is the connection attempt rejected right away? Thank you.
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  • tryingwebman
    Hello :) The message you provided suggests the remote mail server is blocking connection attempts from your server. You can try testing the connection via the following command from your server:
    telnet mx3.hotmail.com 25
    Is the connection attempt rejected right away? Thank you.

    I get the result, 220 SNT004-MC1F54.hotmail.com Sending unsolicited commercial or bulk e-mail to Microsoft's computer network is prohibited. Other restrictions are found at default.asp. 451 Timeout waiting for client input Connection closed by foreign host. Does this mean i have been marked as spam!? Thanks for the help Michael
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  • tryingwebman
    If this is the case I'm pretty sure intact 100% sure this wasn't my doing how do i find out how this came about or even if its still happening!? Thanks again Jamie
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  • tryingwebman
    I have just checked my IPs and server domain and IPS on mxtoolbox and not on any lists
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  • tryingwebman
    Sorry should have done some research first it seams this is the normal outcome? So whats going wrong?
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  • cPanelMichael
    The output from the "telnet" command suggests your server is no longer blocked. Are new messages to Hotmail still failing? Thank you.
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  • tryingwebman
    The output from the "telnet" command suggests your server is no longer blocked. Are new messages to Hotmail still failing? Thank you.

    All email messages are still failing i have tried multiple domains and nothing is sending the only difference now is i am not receiving bounce backs.
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  • cPanelMichael
    It's important to review /var/log/exim_mainlog when a message fails to send out to see exactly what's happening. Do you still see entries such as "2015-12-06 11:06:35 1a5bgS-0004TS-3s H=mx3.hotmail.com [207.46.8.167] Connection timed out" when messages failed, or is it something other than connection timeouts? The connection timeouts indicate the remote mail servers are blocking your messages, or an internal firewall (or provider policy) is blocking the message. Thank you.
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  • tryingwebman
    It's important to review /var/log/exim_mainlog when a message fails to send out to see exactly what's happening. Do you still see entries such as "2015-12-06 11:06:35 1a5bgS-0004TS-3s H=mx3.hotmail.com [207.46.8.167] Connection timed out" when messages failed, or is it something other than connection timeouts? The connection timeouts indicate the remote mail servers are blocking your messages, or an internal firewall (or provider policy) is blocking the message. Thank you.

    After seeing the log using # /var/log/exim_mainlog I can see retry timeout exceeded returning message to sender. And also i can see the error Excessive resource usage: from my root @ domain account what would be the cause of this? I should of pointed out earlier but will point out now. All internal emails are fine i receive all alerts etc sent server side.
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  • cPanelMichael
    You have to view a log file with a command such as "tail" or with the "exigrep" command. EX:
    exigrep user@domain /var/log/exim_mainlog
    This thread will help: Reading and Understanding the exim main_log Thank you.
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