Hi, recently, amavis has started spooning out over some headers and munging attachments on emails. It's very random, sometimes happens and sometimes doesn't even if we send the attachment 5 times. It's impossible to accurately replicate. Here is an example of the headers on a suspect email Code: From - Thu Aug 12 18:27:38 2010 X-Account-Key: account2 X-UIDL: UID2524-1268054582 X-Mozilla-Status: 0003 X-Mozilla-Status2: 00000000 X-Mozilla-Keys: Return-Path: <[email protected][email protected][email protected][email protected][email protected][email protected] I've had to chop out the email addresses for privacy, hope that's OK. Anyway the error from Amavis is in bold. I've tried stopping the header scanning in two ways, selective TLDs and turning off on everything, like so in /etc/amavis/conf.d/50-user : Code: @bypass_header_checks_maps = (); and Code: @bypass_header_checks_maps = (['.tld1.com', '.tld2.com']} However this seems to make no difference. I'm really stuck here and I've got a client balling down my neck about this and can't understand why this has happened all of a sudden. We recently updated the client machines that run Outlook 2007 to SP2 and it seems a bit coincidental with that, but I really need this to stop scanning headers first so I can get normal email resumed before I look into the cause. Any help would be REALLY appreciated. It's a fairly low power VPS running Debian 5.0 according to the HowtoForge perfect server instructions.