RFC3030

Hi,

on the web page it's stated :

> DSN, PIPELINING, and 8BITMIME ESMTP extensions. The /Courier/ mail 
> server automatically converts 8-bit messages to 7-bit encoding, for 
> relaying mail to external mail gateways.
but no reference about RFC3030, BINARYMIME and more I find too bad that 
there is an "automatic convertion" : is the conversion performed even if 
the remote relay/final SMTP server support RFC3030 and BINARYMIME?

one of the things that I find more problematic on today email is the 
base64 overhead : it consume lot of bandwidth, quota on imap servers and 
on disk, without possibility to reduce the overhead (compression) on 
most part of transmission/storage (only local copy can be compressed, 
imap shall not be so consuming quota, transmission neither)

RFC1830 was published in 1995, obsoleted in 2000 by rfc3030, so it's 20 
years that emails should be transferred in binary form and should have 
dropped the base64, and that smtp server should be able to revert the 
base64 when communicating with rfc3030 compliant server (with the only 
exception of PGP signed/encrypted messages, since they enforced that the 
signing occurs AFTER 7bit conversion)

my question is was is done/supported on courrier-mta? regarding BINARYMIME?

best regards

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