Hello,
I've a bit problem understanding the following loglines from our
system:
2003-09-25 09:35:46 Received from <> H=(XXXX.XXXXXXXX.XX) [XXX.XXX.XXX.XX] P=esmtp S=12213 id=E1A2R0W-0004Wl-00@???
2003-09-25 09:35:46 postler@??? R=local_user T=cyrus: Child process of cyrus transport returned 65 (could mean error in input data) from command: /usr/sbin/cyrdeliver
*** Frozen (delivery error message)
What is catching my attention is the string
Received from <>
This line is empty. How can this happen?
The problem is:
Since local user postler is not available and since the sender is
not available, too, the bounce messages are not sent back but to the
local postmaster account.
Where is the part between the <> taken from normally?
If put up a non-mangled copy of the headers here:
http://www.dillerpartner.at/~mfischer/tmp/1A2Qf9-0006t3-II-H.txt
Ok, so thinking after writing and thinking again I searched the
archives. The closest message I found is
http://www.exim.org/mailman/htdig/exim-users/Week-of-Mon-20020930/044200.html
The suggested resolution is "Most probably you don't do
sender/receiver verification in your ACLs, so a
non deliverable bounce-message could be created."
However, I don't know how such a verification would look like (and
what impacts modifications would have on it). I've put up the
acl_check_rcpt ACL (which is used for acl_smtp_rcpt) at
http://www.dillerpartner.at/~mfischer/tmp/30_exim4-config_check_rcpt.txt
I'm pretty sure I didn't touched it at all as the whole stuff is
still new to me.
thanks for any hints,
- Markus
