Date time problem?

We have face a problem about sending email to yahoo. We found that the date/time is faster 16 hrs.

At the beginning we suspect this is a time zone problem (OS level, Location document). but finally we found that this are correct.

Also, we suspect this is server & client incompatible (version info show as below), but finally check both version of client also have this problem.

The below is the email header for that email. Do you all have any suggestion to fix this problem? and why the Date/time it has append a ZE8?

========================================

Authentication-Results: mta563.mail.mud.yahoo.com from=xxx.com; domainkeys=neutral (no sig)

Received: from xxx

by mta563.mail.mud.yahoo.com with SMTP; Wed, 08 Nov 2006 00:58:53 -0800

X-Priority: 1 (High)

In-Reply-To: 20061108084944.68943.qmail@web30207.mail.mud.yahoo.com

Subject: Re: =?iso-2022-jp?B?GyRCMnNKJCEnGyhCIBskQjJzSiQhJxsoQiAbJEIyc0okIScbKEI=?=

=?iso-2022-jp?B?IBskQjJzSiQhJxsoQiBUZXN0aW5nIGZvciBLR0kgdGltZXN0YW1w?=

=?iso-2022-jp?B?IGlzc3Vlcw==?=

To: xxx

Cc:

X-Mailer: Lotus Notes Release 6.5.5 November 30, 2005

From: xxx

Date: 08-Nov-2006 16:57:02 ZE8

========================================

where “xxx” i has removed for private content.

Their server is using Domino R5.0.13a and some client is using R6.5.5 and some client 5.0.12.

Subject: Date time problem?

I don’t know what’s going on, but I do know ZE8 is a time zone code: http://www-1.ibm.com/support/docview.wss?uid=swg21090789