I'm trying to reply to an email from a company but replying to a known working address and also the address I sent the originating email now gets me an email from my Mail Delivery System claiming the following....
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
host mailrelay02.***.co.uk [***.***.***.***]
SMTP error from remote mail server after initial connection:
"I don't take too kindly to coaxial pushed rubbish... or to them damned Intel Puma wastes of plastic."