Wietse Venema via Postfix-users wrote in <4vsq5f6q3nzj...@spike.porcupine.org>: |Tim Coote via Postfix-users: .. |> SMTP headers are often 'folded' as they flow through MTAs. The |> standard approach to folding and unfolding is covered in rfcs 5322 ... |3) Lines that exceed 998 bytes (not including <CR><LF>) cannot be | sent in SMTP. The result of sending such text is UNDEFINED. ... | When a line is too long, the Postfix SMTP client inserts | <CR><LF><SPACE> (controlled by smtp_line_length_limit).
This is a deficit of the entire RFC *822 series that a superficial whitespace is necessary at that point. It was simply not on the table, and i got not even an answer on that in private communication (but maybe because of my way of speaking things out, i mean, isn't that just a desaster: this *breaks* the protocol). (On the other hand the dinosaur nmh just got (partially) proper line folding in September last year: http://git.savannah.gnu.org/cgit/nmh.git/commit/?id=542cb12b6d0646b711772ee97c1e2aacf2bada86 and they will fail for the artificial case as i said in https://lists.nongnu.org/archive/html/nmh-workers/2023-08/msg00010.html [https://lists.nongnu.org/archive/html/nmh-workers/2023-08/msg00011.html]) | Before Postfix inserted <CR><LF><SPACE>, some MTA would insert | a line break after ~1024 without adding a space. This would | "terminate" the message header, destroy the MIME structure, and This is really what they do? Then .. my "artificial whitespace" thought of a decade ago would be wrong. I would have thought they possibly reformat with RFC 2047 (if they can), as i said in the msg00011 thing above. ... --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt) _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
