I have a strange ?problem with attachments to emails being randomly scrambled through our mail server.
I have read up on this topic as much as I can and I understand that Sendmail or any other MTA, for that matter, is not concerned with the contents of a mail envelope, it merely accepts it for delivery. I have checked through the various MIME encoding issues, ESMTP issues and looked at what the MTU's are using to create the mail attachment. I have eliminated most of these issues during my analysis. Here are the symptoms: Windoze clients sending mail using Outlook as a MTU use Sendmail, running on a dedicated Raq3i, for delivery. Mail is processed with no errors of any kind. Sendmail to Sendmail works 10/10, Sendmail to Exchange generates these random errors. I have read about issues where Sendmail converts some MIME formats such as QP to Base64 encoding, however, this does not seem to be the issue as the mail envelope arrives intact to it's destination, the attachment block is recognised and decoded to the correct 'filename' and yet when opened it is still encoded to a Base64 or something. Is this a case of double encoding at some point in the chain of delivery? It only seems to effect users on Microsoft Outlook who are receiving a file from our MTA (sendmail). Should anyone have heard of this problem before I would appreciate some pointers. Many thanks. ./Declan Apologises for the somewhat off the point question to the security list. _______________________________________________ cobalt-security mailing list [EMAIL PROTECTED] http://list.cobalt.com/mailman/listinfo/cobalt-security
