You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@spamassassin.apache.org by Pedro David Marco <pe...@yahoo.com> on 2017/07/03 11:43:47 UTC

Exchange 2010 rewrite headers whimsically

Hi everybody!
According to Microsoft  https://technet.microsoft.com/en-us/library/aa996806(v=exchg.141).aspx  Exchange 2010 only rewirte some headers BUT...  i am seeing it modifying any header in a whimsicallyway...
Headers starting by X- are deleted every other day, and today i am seeing Received headers in wrong order!!!!!
has anyone seen this before?
Thanks!
---PedroD

Re: Exchange 2010 rewrite headers whimsically

Posted by Pedro David Marco <pe...@yahoo.com>.
>Yes, once the mail has been touched by exchange its not useful anymore for
>writing spam rules. Not only headers are changed/removed/reordered also
>he html body is rewritten.
>Also for testing and training the reordered received headers are very
>annoying.
Thanks Merijn..
how funny! let's party around Microsoft again! 
i wonder whether there is any config change we can do in Exchange to avoid this... :-(
----PedroD

Re: Exchange 2010 rewrite headers whimsically

Posted by "Kevin A. McGrail" <ke...@mcgrail.com>.
On 7/3/2017 8:10 AM, Merijn van den Kroonenberg wrote:
>> Hi everybody!
>> According to Microsoft
>> Âhttps://technet.microsoft.com/en-us/library/aa996806(v=exchg.141).aspx
>> Â Exchange 2010 only rewirte some headers BUT... Â i am seeing it
>> modifying any header in a whimsicallyway...
>> Headers starting by X- are deleted every other day, and today i am seeing
>> Received headers in wrong order!!!!!
>> has anyone seen this before?
> Yes, once the mail has been touched by exchange its not useful anymore for
> writing spam rules. Not only headers are changed/removed/reordered also
> the html body is rewritten.
>
> Also for testing and training the reordered received headers are very
> annoying.
>
Concur.  We often use linux boxes in front of exchange boxes for any 
type of mail manipulation.

I had to respond because I loved the term "Whimsical modification".  I 
shall use that here out.

BTW, for those interested, work continues on masscheck.  I spent Friday 
restoring two boxes in a hackathon from Crashplan and going line by line 
through logs.  It wasn't that helpful because we've already improved 
things too much and switched to powerDNS.

I expect we are going to have to break eggs to make omelets.

Regards,

KAM

Re: Exchange 2010 rewrite headers whimsically

Posted by Merijn van den Kroonenberg <me...@web2all.nl>.
> Hi everybody!
> According to Microsoft
>  https://technet.microsoft.com/en-us/library/aa996806(v=exchg.141).aspx
>  Exchange 2010 only rewirte some headers BUT...  i am seeing it
> modifying any header in a whimsicallyway...
> Headers starting by X- are deleted every other day, and today i am seeing
> Received headers in wrong order!!!!!
> has anyone seen this before?

Yes, once the mail has been touched by exchange its not useful anymore for
writing spam rules. Not only headers are changed/removed/reordered also
the html body is rewritten.

Also for testing and training the reordered received headers are very
annoying.

> Thanks!
> ---PedroD
>
>
>
>