On Sat, Oct 17, 2009 at 10:08:30PM +0400, Vitaly Lipatov wrote:
> Например
> http://www.etersoft.ru/content/view/179/
> ?
I wouldn't go so far to use "MUST" in such nazi way.  You should
read RFC2821 section 3.6 more carefully.

-- 
Regards,
Sir Raorn.