[exim-dev] [Bug 1436] New: DNS failure causes DEFER hosts=/f…

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http://bugs.exim.org/show_bug.cgi?id=1436
           Summary: DNS failure causes DEFER hosts=/file
           Product: Exim
           Version: 4.82
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: bug
          Priority: high
         Component: ACLs
        AssignedTo: jgh146exb@???
        ReportedBy: support@???
                CC: exim-dev@???

I have a conditional where hosts = some file name that contains a list of
hosts. Some are IP addresses and some are host names. If any member of the list
is a host name and fails on a DNS lookup then the ACL defers with a temporary
error.

Here's my code:

accept  condition = ${if
exists{$acl_m_domain_directory/whitehosts.txt}{yes}{no}}
        hosts = $acl_m_domain_directory/whitehosts.txt

The offending list member at the time I'm reporting it is:

smtp.greybeardhosting.com

Shouldn't such failures be ignored? The failure shut down all email delivery to
the recipient's domain.


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