suomi wrote:
Problem is:
last friday, a person complained that no messages had been sent from
an application which sends the same message to about 40
mail-recipients including to this person himself. Messages are sent
via php-pear-Mail-Mime, which sofar has worked correctly in all cases:
single-mail, small mail-lists, about 40 mail-recipients mail list.
Just in this single case the mail was not sent. I am at a loss for new
ideas on what the reason could be.
In the postfix log, where the php-pear-Mail-Mime client sends all
mails, for the mail in question I find the following:
Mar 20 09:00:01 smtphost postfix/smtpd[3990]: connect from
senderhost.mydomain.com[xxx.xxx.xxx.163]
Mar 20 09:00:01 smtphost postfix/smtpd[3990]: disconnect from
senderhost.mydomain.com[xxx.xxx.xxx.163]
and no more.
I am sure that the above log entry corresponds to the failed mail,
because in the application log I can see that the person sent the
message exactly at 09:00:01. postfix on the smtphost is not busy, the
last message before the failed was processed at 08:56:15 and the next
message after the failed was processed at 09:38:29.
I also checked to see that no empty mail addresses had been sent in
the recipient list.
Test with this application are very delicate, because I cannot send
interminable test-mail to the entire mail-list.
Where could I try to find the error in this case?
The answers to all of the world's important questions are in the log
file (OK, they're not nearly as important as friends, SCUBA diving and
pizza, but the answers are still in the log).
Edit your config file to increase the log level, then see exactly what's
happening.
See http://www.postfix.org/DEBUG_README.htm for more info.
It will tell you in much greater detail what's going on.
Terry
