Suggestion: negation in email filters

[seanmagh]

A suggestion for next versions:

It would be nice if email filters had the possibility to include negative conditions:
"not contains"
"is not exactly"
...

Thanks

[Martin Heiland]

Hi,

thanks for your request. Those filters are provided by the SIEVE implementation of the IMAP Server. We cant write SIEVE scripts that use invalid syntax. You could use regex to achieve such rules. However, we're gonna check if its possible and think about it. In addition, you could also report this through your OX representative if you like.

Greetings