Hi out there

Already the second customer forwarding error messages to us like this one:

------------------------ MicrosoftExchange329e71ec88ae4615bbc36ab6ce41109e@hosting.local

Reporting-MTA: dns; s8191.hosting.local

Final-recipient: RFC822; IMCEAEX-_o=GSP_ou=BASEL_cn=Recipients_cn=XXXX@XXXX.com Action: failed Status: 4.4.7 X-Supplementary-Info: < #4.4.7 smtp;550 4.4.7 QUEUE.Expired; message expired> ------------------------

We could not find any hint, that the sender did try to contact our server (well a .local hostname is not much help to find the IP address usualy).

This looks like an exchange server, but the MX of the sender points to Googles Postini Service. Do some others experience similar problems with customers hosted @postini? Is Postini using MS Exchange Servers?

Mit freundlichen Grüssen

Benoit Panizzon