Hello friends, I've configured a body-filter in ISPConfig 3 but this filter should not match for some special mail addresses. Unfortunately the white list check doesn't work in this case, because the smtpd_sender_restrictions are processed at the beginning of the smtp dialog and the whitelist only after this. Example: Mails with dropbox, wetransfer or paypal links should be redirected to a special mail address, because we get a lot of pishing mails with this content... /(dropbox|wetransfer|paypal)/ REDIRECT admin0example.com Now we have some trustworthy customers (i.e. info0customer.com) who send us real links from dropbox. E-Mails from them should not be filtered. I think the only way to do this is a MIME check with a negativ lookahead, but I don't know what's the right way. /(?!info0customer.com).*(dropbox|wetransfer|paypal)/ doesn't work. :-( Can anyone help me? Best regards... PS: Sorry, because I'm new at this forum I can't use the at-sign (I can't post mail addresses), so I've used a 0 for this...
The checks work from top to bottom. So you could have rules first for your special cases and signal them with "PASS": That way, you can have your special cases first. If they pass, then the mail won't be checked against the other rules.
