Hi to all.
Sorry for a OFFTOPIC but don't know where to ask this question. I need an
RFC's guru help :-)
So, as I've found in RFC's all header fields in message should be encoded
to 7-bit data. In addition my SMTP server does *not* support 8-bit MIME
for incoming e-mail.
The question is in subject - or am I missed some *legal* usage of 8-bit
characters (maybe some kind of comments, optional fields, etc)?
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.
Thanks in advance. Vitas.
