> On Oct 6, 2017, at 5:03 AM, Florian Coulmier <[email protected]> > wrote: > >> Postfix sends "SIZE=" in "MAIL FROM" unless it is going to do 8bit to 7bit >> downgrade: >> (source code removed) > >> So it would appear (if your reported transcript is accurate) that >> Postfix did not believe the peer to be 8BITMIME-capable. Since >> the SMTP server's EHLO reply does in fact include 8BITMIME, I can >> only conclude that you have some sort of filter in place on the >> EHLO keywords or server reply. > > As said to Matus Uhlar, I think this is because I’m using postfix 2.11 and > the 8BITMIME support has been introduced in version 3.0.
You really should not make up facts out of thin air, however popular that might be these days. Support for sending "SIZE=" in Postfix is at least 19 years old, with the MIME downgrade suppressing dating back 11 years. https://github.com/vdukhovni/postfix/blame/master/postfix/src/smtp/smtp_proto.c#L1466 > Too bad… I’ll see if I can upgrade. Waste of time, why don't you post your config as requested. Also, make sure that any network captures you are looking at or post are taken directly from your Postfix machine, and not on the other side of some too-clever firewall. -- Viktor.
