strange mail problem

i'm running postfix 2.0.11 on a CPUBuilders OS (essentially the same as
RH9) and getting some strange things happening when sending mail.

Here are the tests I've run:
glandix-5N9U/[email protected] -> [email protected] : WORKS
glandix-keFHqvEDeV58UrSeD/[email protected] -> [email protected] : WORKS
glandix-keFHqvEDeV58UrSeD/[email protected] -> [email protected] : WORKS
glandix-5N9U/[email protected] -> [email protected] : FAILS
glandix-5N9U/[email protected] -> <anything>@stratitec.com : FAILS

The thing that's really blowing my mind is that anything sent from my
lloydnet.org address to any stratitec.com address NEVER appears in the
maillog on mail.stratitec.com!  No connections what-so-ever are made
from mail.lloydnet.org to mail.stratitec.com!  I don't have access to
the logs on mail.lloydnet.org (it's actually hosted by powweb.com), so I
don't know if anything appears in the maillog there.

Essentially, the e-mail sent from glandix-5N9U/[email protected] to anything at
stratitec.com just disappears. I'm able to send/receive other e-mail
with both my stratitec and (obviously) lloydnet.org addresses.

Mail client settings have been quadruple+ checked, so i'm 100% positive
they are all correct ... besides, i can use powweb's webmail interface
to mail.lloydnet.org and I get the same problem ... hell, i can telnet
to port 25 and do smtp commands by hand and i still get the same
problem... (no errors are displayed and they're running postfix as
well).

thanks,
-g-
-- 
"...Broke into the old apartment
Tore the phone out of the wall
Only memories, fading memories
Blending into dull tableaux..."
	'The Old Apartment' - Barenaked Ladies

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