breaking long header lines into 2 (or more) lines

[Matthias Apitz]

Hello,

Long header lines can be split into 2 or more lines and the 2nd line
must start with a blank (is TAB allowed too). Is there any rule (RFC) at
which char the split is allowed or not allowed? For example, can mail
addr lines be broken at any point like this one:

To: mutt-users at mut
 t.org

I did tests before asking and such a case like the one with mutt-users at mutt.org
above is arriving fine and the line is put together somewhere in the MTA
chain.

Thanks for any pointer?

	matthias
-- 
Matthias Apitz, ✉ guru at unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub
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