Hello [email protected],
>From the docs of the verify = helo operation
it appears that this check succeeds if
A) the HELO string is an IP literal that matches $sender_host_address
[127.0.0.1]
OR
B) the HELO string is a name can be resolved to the
$sender_host_address
OR
C) the $sender_host_address can be reverse-resolved to the HELO string
(PTR record lookup)
A, B work as intended, but C somehow does not (at least not if the PTR
record resolves to a name that has no A/CNAME entry itself, or the name
does but points to a different IP)
Any hints on what the problem is here?
My ACL RCPT check looks like the following:
warn !authenticated = *
verify = helo
set acl_m_helorfc = true
Also, as I can see from the code, if verify=helo runs into
temporary DNS problems, it fails rather than creates a
defer, unlike most other DNS related checkers in Exim,
could somebody confirm this please?
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