#529 new
Henrik I Christensen

SMTP submission error

Reported by Henrik I Christensen | December 10th, 2013 @ 08:35 PM

I get the following error message from our SMTP server. I do not get this message when I am using Postbox, Mail or Airmail.

4.4.2 Message submission rate for this client has exceeded the configured limit

Henrik

Comments and changes to this ticket

  • benny

    benny December 11th, 2013 @ 09:09 AM

    Is this an Exchange SMTP server (based on what I found here)?

    Try opening the Activity Viewer (⌥⌘0) and then send a message (maybe after relaunching MailMate to clear all state). Then locate the SMTP connection used for the attempt to send and select it to see the log in the lower part of the window. Maybe that can provide a hint. You are welcome to send it to me.

  • Henrik I Christensen

    Henrik I Christensen December 11th, 2013 @ 02:14 PM

    It is indeed an exchange server (2011). The trace from the log is

    S: 220 mail.dlpe.gatech.edu<http://mail.dlpe.gatech.edu> Microsoft ESMTP MAIL Service ready at Wed, 11 Dec 2013 08:47:05 -0500
    C: EHLO [192.168.1.110]
    S: 250-mail.dlpe.gatech.edu<http://250-mail.dlpe.gatech.edu> Hello [10.41.1.181]
    S: 250-SIZE 104857600
    S: 250-PIPELINING
    S: 250-DSN
    S: 250-ENHANCEDSTATUSCODES
    S: 250-STARTTLS
    S: 250-AUTH GSSAPI NTLM
    S: 250-8BITMIME
    S: 250-BINARYMIME
    S: 250 CHUNKING
    C: STARTTLS
    S: 220 2.0.0 SMTP server ready
    Initiating SSL/TLS...
    Setup of SSL/TLS connection complete.
    C: EHLO [192.168.1.110]
    S: 250-mail.dlpe.gatech.edu<http://250-mail.dlpe.gatech.edu> Hello [10.41.1.181]
    S: 250-SIZE 104857600
    S: 250-PIPELINING
    S: 250-DSN
    S: 250-ENHANCEDSTATUSCODES
    S: 250-AUTH GSSAPI NTLM LOGIN
    S: 250-8BITMIME
    S: 250-BINARYMIME
    S: 250 CHUNKING
    C: AUTH LOGIN
    S: 334 VXNlcm5hbWU6
    C: ••••••••••
    S: 334 UGFzc3dvcmQ6
    C: ••••••••••
    S: 235 2.7.0 Authentication successful
    C: RSET
    S: 250 2.0.0 Resetting
    C: MAIL FROM:<hic@cc.gatech.edu<mailto:hic@cc.gatech.edu>> SIZE=2095
    S: 452 4.3.1 Insufficient system resources
    Error: Unexpected return code 452 (expected 250):
    “4.3.1 Insufficient system resources”.
    C: QUIT
    

    Surprised that I am not getting any problems with other mailers. I have asked our helpdesk to check the log on server side. Best

  • benny

    benny December 11th, 2013 @ 02:22 PM

    The MAIL FROM value looks strange. Where does the mailto: stuff come from? Maybe check your IMAP account settings.

    Other than that, it looks fine, but note that the error message has changed. It now seems to indicate that the server does not have enough space for the message...

  • Henrik I Christensen

    Henrik I Christensen December 11th, 2013 @ 02:30 PM

    I have been playing around here. Is another log dump

    Clearing connection to ccmail.cc.gatech.edu
    Trying to connect to ccmail.cc.gatech.edu on port 587
    Successful connection.
    S: 220 mail.dlpe.gatech.edu Microsoft ESMTP MAIL Service ready at Wed, 11 Dec 2013 09:27:24 -0500
    C: EHLO [192.168.1.110]
    S: 250-mail.dlpe.gatech.edu Hello [10.41.1.181]
    S: 250-SIZE 104857600
    S: 250-PIPELINING
    S: 250-DSN
    S: 250-ENHANCEDSTATUSCODES
    S: 250-STARTTLS
    S: 250-AUTH GSSAPI NTLM
    S: 250-8BITMIME
    S: 250-BINARYMIME
    S: 250 CHUNKING
    C: STARTTLS
    S: 220 2.0.0 SMTP server ready
    Initiating SSL/TLS...
    Setup of SSL/TLS connection complete.
    C: EHLO [192.168.1.110]
    S: 250-mail.dlpe.gatech.edu Hello [10.41.1.181]
    S: 250-SIZE 104857600
    S: 250-PIPELINING
    S: 250-DSN
    S: 250-ENHANCEDSTATUSCODES
    S: 250-AUTH GSSAPI NTLM LOGIN
    S: 250-8BITMIME
    S: 250-BINARYMIME
    S: 250 CHUNKING
    C: AUTH LOGIN
    S: 334 VXNlcm5hbWU6
    C: ••••••••••
    S: 334 UGFzc3dvcmQ6
    C: ••••••••••
    S: 235 2.7.0 Authentication successful
    C: RSET
    S: 250 2.0.0 Resetting
    C: MAIL FROM:<hic@cc.gatech.edu> SIZE=2097
    S: 452 4.3.1 Insufficient system resources
    Error: Unexpected return code 452 (expected 250):
    “4.3.1 Insufficient system resources”.
    C: QUIT
    

    It does appear to be a "space"/resource issue server side, but I do not get any errors when sending the same message from the OSX Mail client.

  • benny

    benny December 11th, 2013 @ 02:33 PM

    Maybe you don't use the IMAP access with Apple Mail and that makes a difference?

  • Henrik I Christensen

    Henrik I Christensen December 11th, 2013 @ 02:36 PM

    True. I am using the Mail exchange link, but I have used airmail with the imap and still not getting the error message. My preference is mail clients i) mailmate, ii) airmail and iii) osx mail. Not sure what has changed. Could be server side or client slide. I am using the latest mailmate - Version 1.7.1 (3836) - with version 2 features enabled.

  • benny

    benny December 11th, 2013 @ 02:40 PM

    One possible difference. The server claims to support the SIZE extension. MailMate supports that and tells the server the size of the message to be uploaded. Maybe this triggers a bug in Exchange that the other email clients do not trigger.

    Other than that I cannot see any potential problems.

  • Henrik I Christensen

    Henrik I Christensen December 11th, 2013 @ 02:42 PM

    Not sure. I have asked our enterprise people to send me a copy of the relevant part of the log, so that I can see what is happening server side. Stay tuned. Thank you for your support.

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