Brent, I can confirm we also see this issue using exim/MailScanner. I've also done tcpdump debugging which also shows when first received this is fine, it`s when MailScanner rewrites the file to the outbound spool that things break.
On our setup, this only manifests itself with mailing list/marketting emails, specifically those with fairly long From addresses. I've tried working through this with Julian Field (MailScanner) but have yet to see a resolution despite Julians best efforts. Attached is a PHP file which when ran via cron, works around the issue after the queue file is past a certain age (we have PHP on our mail servers for other reasons, although this is a fairly simple convert to Perl) It`s not pretty, but it does work. If you do find a resolution, please let me know.. Cheers Chris Knowledge Limited, Company Registration: 1554385 Registered Office: New Century House, Crowther Road, Washington, Tyne & Wear. NE38 0AQ Leeds Office: Viscount Court, Leeds Road, Rothwell, Leeds. LS26 0GR Tel: 0845 142 0020. Fax: 0845 142 0021 E-Mail Disclaimer: This e-mail message is intended to be received only by persons entitled to receive the confidential information it may contain. E-mail messages to clients of Knowledge IT may contain information that is confidential and legally privileged. Please do not read, copy, forward, or store this message unless you are an intended recipient of it. If you have received this message in error, please forward it to the sender and delete it completely from your computer system. Please consider the environment before printing this email.
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