Hi folks,
I was thinking on implementing a sieve-milter, an addon for
sendmail, that filters mails for users, which do not necessary have
mailbox on that server. In such cases the filter is applied to the
whole envelope with its contents (except where the message is
modified, in which case a new message shall be generated). And on some
points I continue to think how to implement them.
- test size
How shall the implementation determine the size of the message: if the
smtp server supports rfc 1870 (esmtp, size), can the sieve
implementation use that value (MAIL FROM: nana(_at_)aegee(_dot_)org size=10000 ,
or shall count by itself the bytes contained?
- envelopes
If a mail goes to several recepients, but in one envelope, test
address and test envelope can figure it out, but then the rfc3028
permits that one user removes the other from the envelope. E.g. if a
mail goes
To: a(_at_)d(_dot_)e, b(_at_)d(_dot_)e
the a(_at_)d(_dot_)e(_dot_) might have the follwoing script
if envelope :all is "to" b(_at_)d(_dot_)e discard;
then the mail might not be delivered to b(_at_)d(_dot_)e . Is there any sentence,
I have overseen, prohibiting that the different users' scripts may not
interfere?
Greetings,
Дилян