[EMAIL PROTECTED] writes: > So, as I've found in RFC's all header fields in message should > be encoded to 7-bit data.
s/should/must/ > In addition my SMTP server does *not* support 8-bit MIME for > incoming e-mail. That's very uncommon and lot of mail will be probably rejected due to this. > The question is in subject - or am I missed some *legal* usage > of 8-bit characters (maybe some kind of comments, optional > fields, etc)? Without extensions (RFC 1652), 8-bit in SMTP body is illegal. > Of course, the goal is to write the rule for SA that will > trigger on 8-bit symbols in raw ("raw"="what I've seen in > tcpdump output for this message") message. fwiw, sendmail has | O EightBitMode=strict rule. See https://www.cvg.de/people/ensc/sendmail-8hdr.txt for a rule to check headers. Enrico