Mailbox Filtering & UTF-8 Encoding

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Posts: 28
Joined: Thu Feb 15, 2018 7:22 pm

Mailbox Filtering & UTF-8 Encoding

Post by sl-jasonr » Mon May 06, 2019 8:40 pm

If I create a filtering rule with a "Message Subject Contains" criteria, it will match against messages with a plain-text subject line, but not if the subject uses UTF-8, or other such encoding.

For example, if I create a rule -> Message Subject Contains: testing

it will match this:
Subject: I am testing

but not this:
Subject: =?UTF-8?Q?I_am_testing?=

even though they are semantically equivalent.

Posts: 23
Joined: Tue Sep 11, 2018 12:20 pm

Re: Mailbox Filtering & UTF-8 Encoding

Post by scotty562 » Mon Jan 06, 2020 3:46 pm

Any updates here? I'm experiencing the same issue. A lot of spam makes it through because of it.

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