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http://www.exim.org/bugzilla/show_bug.cgi?id=495

           Summary: Failure of callout/random
           Product: Exim
           Version: N/A
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: wishlist
          Priority: high
         Component: ACLs
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]
         QAContact: [EMAIL PROTECTED]


It seems that protocol failure on random check is fatal eventually:

2007-04-13 06:46:43 H=(msu.edu) [204.9.147.230] sender verify defer for
<[EMAIL PROTECTED]>: response to "RSET" from lb.mail.msu.edu [35.9.75.15] was:
connection dropped

Connection drops on "RCPT TO:<[EMAIL PROTECTED]>"
(invalid rcpt).

It defers, then obviously it fails after a while. These hosts drop the
connection immediately on an invalid recipient, while accepting valid ones.

I would do "callout/defer_does_what_it_have_to,random/defer_ok", if I could. So
exim would try random check, it fails with protocol error, then it would go on
checking the sender, which would succeed. I'd say in that case exim should do
what defer_ok does normally: go on but do not cache the result. 

Checking my maillog this behaviour starts to spread (which is unfortunate but
understandable).

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