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Fix Available: SMTP regression issue in Domino 9.0.1 FP9 can cause malformed headers

Daniel Nashed  16 September 2017 22:43:31
Finally we got IF1 for 9.0.1 FP9 for the issue I reported in an earlier blog post
.
The regression was introduced by a fix that IBM has removed in IF1 (and I got a hotfix earlier as mentioned in an earlier blog post).

The root cause is an issue with malformed headers  -- specially the from header that are generated at message itemization.

Depending on your configuration this causes garbage chars in your headers. In any case some functionality like SMTPVerifyAuthenticatedSender=1 or capturing mail for certain recipients via SMTPSaveImportErrors=3 and SMTPSaveFileFrom=sender  did not work any more.

This is not the final fix. IBM is working on resolving the regression. So this fix along with another agent bug fix is really just a quick fix to allow you to deploy FP9.

I installed the fix on my Linux64 machine which shows up as 9.0.1 FP9 HF 63 and it resolves the regression.

See details here:

http://www.ibm.com/support/docview.wss?uid=swg22008327

IF1 contains the two fixes:

KBRNAQKKK9
        Domino agents crash in the backend in FP8 with a memory overwrite        

JCARAQSJB6
        SMTP regression issue in Domino 9.0.1FP9 can cause malformed headers & prevent Internet mail delivery with SMTPVerifyAuthenticatedSender=1 (technote 2008327)        

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