Hello.
When I sent newsletters, mail servers that have spamassassin installed giving spam points.
MISSING_MIMEOLE : Message has X-MSMail-Priority, but no X-MimeOLE

From their site:
Explanation

The message is pretending to be generated by a Microsoft email program which uses the extension header X-MSMail-Priority, but is missing the extension header X-MimeOLE which is characteristic of Microsoft email.

This suggests that the sender is using badly-written mailout software, rather than a genuine Microsoft email program.
===

Solution: remove X-MSMail-Priority header.

CommentFileSizeAuthor
#9 msmail-priority-header-without-x-mimeole_2072779#9.patch1.15 KBbachbach
#5 msmail-priority-header-without-x-mimeole_2072779.patch1.2 KBjalpesh

Comments

lukasss’s picture

lukasss commented
Issue summary: View changes

Solution: remove X-MSMail-Priority header

You did?

sk2013’s picture

sk2013 commented

Is it really required?

Thanks

lukasss’s picture

lukasss commented

It is very necessary!

sk2013’s picture

sk2013 commented

Thank you very much. I will remove this ...

jalpesh’s picture

jalpesh commented
Status: Active » Needs review
StatusFileSize
new msmail-priority-header-without-x-mimeole_2072779.patch1.2 KB

Are you talking about removing all occurrence of X-MSMail-Priority from source file. Please confirm?

sk2013’s picture

sk2013 commented

@lukasss

Can you confirm to jalpesh’s post?

Thanks to all.

lukasss’s picture

lukasss commented

Result old: http://www.mail-tester.com/web-fkTphL
Result after apply patch #5: http://www.mail-tester.com/web-V4WYpW

#5 working for me!

Thanks to all.

altagrade’s picture

altagrade commented
Version: 7.x-1.0-rc1 » 7.x-1.x-dev
Status: Needs review » Reviewed & tested by the community

This is to confirm the patch significantly improves mail rate from Drupal site on https://www.mail-tester.com. Also the accepted answer on https://stackoverflow.com/questions/12283443/spamassassin-missing-mimeol... confirms the same - that the X-MSMail-Priority header should be removed. The patch is RTBC, however should be applied against the dev version, not RC.

bachbach’s picture

bachbach commented
Version: 7.x-1.x-dev » 3.x-dev
Status: Reviewed & tested by the community » Needs review
StatusFileSize
new msmail-priority-header-without-x-mimeole_2072779#9.patch1.15 KB

Hi,

same patch for 3.x-dev

jonathanshaw’s picture

jonathanshaw
Primary language English
Location Stroud, UK
commented
Status: Needs review » Reviewed & tested by the community

Makes sense to me. There's not much information on Google about this header, other than people hitting the same problem. I think safer to remove.

adamps’s picture

adamps commented
Priority: Major » Normal

Thanks makes sense to me. Unfortunately we cannot commit any fixes until someone fixes the branch test failures.

  • AdamPS committed c4dac4e on 3.x authored by bachbach 
    Issue #2072779 by bachbach, jalpesh, lukasss, AltaGrade: Spamassassin...
adamps’s picture

adamps commented
Status: Reviewed & tested by the community » Fixed

Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.