> On May 16, 2017 at 1:05 AM Ory Drilon <odri...@fastmail.com> wrote: > > > Hi, is there a way to arbitrarily filter out mails at the moment the > IMAP request is made, based on properties of the IMAP session and the > mail itself? > > All the filtering methods I find occur during delivery time.
imapsieve: https://tools.ietf.org/html/rfc6785 Although obviously triggering filtering based on a FETCH itself doesn't make much sense and isn't supported by imapsieve (triggering based on flag change *caused* by FETCH is supported however). michael
