[Dovecot] TAB characters in subject header continuation/wrap lines

Stephen Warren swarren at wwwdotorg.org
Tue Sep 12 21:02:50 EEST 2006


John Peacock wrote:
> Stephen Warren wrote:
>> My question is: Should Dovecot be detecting mail header continuation
>> lines that start with a TAB, and stripping the TAB (converting to a
>> space)? 
> 
> No.  Dovecot should not alter the message at all.  There is an older bug
> in bugzilla about this; it is the MUA that is at fault here.  The
> leading tab is FWS (Folding White Space) and can be added by clients
> (Exchange is particularly prone to do this) and should be ignored by
> everything up to and including the local MUA.

OK. That makes sense. I see Thunderbird bugs have been filed for this
issue, e.g.:

https://bugzilla.mozilla.org/show_bug.cgi?idd948

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