Re: System I/O error (in reply to end of DATA command) for LMTP delivery

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OTH, my guess is that Cyrus is failing to create the tmpfile to stage the message.  Is /tmp (or its equivalent) full, or not writeable?

Without something from the Cyrus syslog, this will be hard to diagnose.


On 06/01/2018 12:51 PM, Stephen Ingram wrote:
Ken-

That all appears to be working correctly. Here's a cut from the Postfix debug with addresses obfuscated:

Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr offset = 682
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr dsn_orig_rcpt = rfc822;x@xxxxx
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr notify_flags = 0
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr status = 4.3.0
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr diag_type = smtp
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr diag_text = 451 4.3.0 System I/O error
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr mta_type = dns
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr mta_mname = imap.x.x
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr action = "">
Jun  1 16:48:52 mx postfix/lmtp[18136]: send attr reason = host imap.x.x[10.0.13.83] said: 451 4.3.0 System I/O error (in reply to end of DATA command)
Jun  1 16:48:52 mx postfix/lmtp[18136]: private/defer socket: wanted attribute: status
Jun  1 16:48:52 mx postfix/lmtp[18136]: input attribute name: status
Jun  1 16:48:52 mx postfix/lmtp[18136]: input attribute value: 0
Jun  1 16:48:52 mx postfix/lmtp[18136]: private/defer socket: wanted attribute: (list terminator)
Jun  1 16:48:52 mx postfix/lmtp[18136]: input attribute name: (end)
Jun  1 16:48:52 mx postfix/lmtp[18136]: B7B0B9A2EB0: to=<x@x.x>, orig_to=<x@x.x>, relay=imap.x.x[10.0.13.83]:24, delay=0.3, delays=0.19/0/0.09/0.02, dsn=4.3.0, status=deferred (host imap.x.x[10.0.13.83] said: 451 4.3.0 System I/O error (in reply to end of DATA command))

Steve

On Fri, Jun 1, 2018 at 9:33 AM, Ken Murchison <murch@xxxxxxxxxxxx> wrote:
On 6/1/18 12:21 PM, Stephen Ingram wrote:
I'm receiving a 451 4.3.0 System I/O error (in reply to end of DATA command) error from Postfix when trying to deliver to cyrus-imap and not really sure why. I'm on CentOS 7 (2.4.17-8) after downgrading from current version. I'm using Kerberos GSSAPI to connect to the front end, but authentication appears to be working fine as I can see authenticated when enabling LMTP debugging in Postifx. All messages are refused for delivery though. I'm not sure what to do. Any suggestions?

Any chance that Kerberos is negotiating a security layer?

--
Kenneth Murchison
Cyrus Development Team
FastMail Pty Ltd


-- 
Ken Murchison
Cyrus Development Team
FastMail US LLC
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