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Solving Greylisting Problems in GWIA

Novell Cool Solutions: Tip
By Alan Ninatoski

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Posted: 29 May 2007


I had a problem with Greylisting and GWIA. Some e-mails were failing to get through, with this error message:

16:32:52 3C4 DMN: MSG 728 Send Failure: 451 4.7.1 message delayed, 
see ( ) ; 
Please try again later


The solutions was to adjust the GWIA SMTP/MIME settings for the "Intervals to retry a deferred message". The default GWIA settings were:


I changed them to:


That fixed the problem.

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