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cuie

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Hi, we have a following problem with some messages when trying to send the via KMS.

The mail.log says: Recipient: <the_name_of_recipient<_a.t_>domain.fi>, Result: delayed, Status: 4.3.2 451 qq temporary problem (#4.3.0)

I tried to google the problem but I only found problems related to Qmail. The problem apparently appearing only with one account but with several different recipient domains.

This is urgent problem since we are using Kerio to send Ad material to newspapers and those files shouldn´t be delayd more than couple of hours max.

KMS is v6.3.1 on Mac OS X Server 10.4.8.
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microalps

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It means that the Qmail Queue, has a temporary problem. Qmail (an MTA for linux servers) may be having trouble understanding your message and can't put it into the queue. Does you email contain any sort of attachments? Do plain text messages go through to those recipients?
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cuie

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Yes, all of the problematic messages had a attachment. a zip file if I recall it right.

All messages are sent in plain text. This problem only occurs in approx. 0,1-0,2 % of messages sent by that account.
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