On 06/04/2020 14:08, Ashley Dixon wrote:
After my thankfully-brief experience with the likes of Microsoft and their
Exchange program, I always question how much impact the content of an R.F.C.
actually has on an implementation.
:-)
Okay, it was a long time ago, and it was MS-Mail (Exchange's
predecessor, for those who can remember back that far), but I had an
argument with my boss. He was well annoyed with our ISP for complying
with RFC's because they switched to ESMTP and MS-Mail promptly broke.
The *ONLY* acceptable reason for terminating a connection is when you
recieve the command "BYE", so when Pipex sent us the command EHLO,
MS-Mail promptly dropped the connection ...
Pipex, and I suspect other ISPs, had to implement an extended black list
of customers who couldn't cope with ESMTP.
Cheers,
Wol