After recent upgrade to Openserver 5.07, all security and patches to-date,
with MMDF as MTA, have come across the following problem.
PC's in network send email through 507 box, which channels it out over net.
the SMTP process, however, is adding the pc name to the host-name, after
which some upstream SMTP server is rejecting it because of a malformed
host-name header - apparently, the PC's name is getting pre-pended to the
Your message cannot be delivered to the following recipients:
Recipient address: tech1:com
Reason: Illegal host/domain name found
anyone know where this is happening and how to ...