https://bugs.exim.org/show_bug.cgi?id=2972
Bug ID: 2972
Summary: ACL check "!verify = reverse_host_lookup"
gives error
Product: Exim
Version: 4.96+
Hardware: x86
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: ACLs
Assignee: jgh146exb@???
Reporter: ente@???
CC: exim-dev@???
Version Info:
❯ pacman -Q | grep exim
exim 4.96-2
An ACL with the following lines gives some strange and hard to predict error:
warn log_message = [ACL_MAIL_UNAUTHED] Reverse DNS lookup failed
!verify = reverse_host_lookup
set acl_m_reject = true
add_header = X-SPAM-REVERSE-DNS-LOOKUP: failed
There are 2 different versions of the error. For the precise text above
currently the error is only received when actually processing an incoming mail:
X=TLS1.3:TLS_AES_256_GCM_SHA384:256 CV=no temporarily rejected MAIL
<XXXXX@???>: expected "sender[=address]", "recipient", "helo",
"header_syntax", "header_sender", "header_names_ascii" or "reverse_host_lookup"
at start of ACL condition "verify reverse_host_lookup"
This is literally copied from journald. The '=' is suddenly missing. In the
config file, it exists.
Before I got a different error, when starting up exim. Same line. A minor
different ACL check. The old check was:
warn log_message = ACL_MAIL_UNAUTHED: Reverse DNS lookup failed.
!verify = reverse_host_lookup
set acl_m_reject = true
add_header = X-SPAM-REVERSE-DNS-LOOKUP: failed
The error was:
[2/2] error in ACL: "=" missing after ACL "verify" condition
[1\2] 2023-01-12 16:53:36.247 [18255] Exim configuration error in line 137 of
/etc/mail/exim.conf:
error in ACL: "=" missing after ACL "verify" condition
Now I commented those lines, everything else is working fine. I have 8 checks
in this ACL. They are all in a similar structure. Among others I have
!verify = helo
!verify = csa
!verify = sender/callout=10s,fullpostmaster
in the same ACL and they dont throw any error.
So this is weird to me. Am I blind and can't spot my own error? Sorry for the
noise, if so.
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