Email order confirmations getting flagged as virus laden

Not sure what is going on

[CernyM]

Some emailed confirmation messages from our shopping cart are getting bounced by virus scanners. It doesn't appear that the bounces are coming from desktop scanners, but rather from the type that sit on the mail server and scan all inbound mail.

I've checked and rechecked the email confirmations and there is no virus in them. There isn't even an attachment along with them. When I send a confirmation to my email address, McAfee virus scan doesn't bat an eye. When I send a confirmation to my Yahoo account, it doesn't flag it as problematic.

I have no idea why some scanners are tripping - has anyone seen this before?

[RailMan]

i would suggest running a series of tests - change the wording in your emails - or even remove parts of the wording - change one part at a time and see what happens - if you remove something and the email goes through ok, put that something back and try again

also try sending the emails from other email addresses / domains etc - it's a process of elimination

[Beagle]

Going along with Railman's suggestion about changing the wording - are you sure it's virus filters and not spam filters that are doing the bouncing?

[CernyM]

Its definitely virus filters. The bounce messages claim to have found a virus.

[sonjay]

Are you sending these e-mails as plain text or html? It wouldn't surprise me if some aggressive filters are triggered by anything containing html.