I can confirm iOS 18.2.1 has no included IMAP IDLE fix. To verify this assertion I did: 1. quit iOS Mail app AND shutdown my iPhone. 2. updated and commented out the imap_capability flag on my dovecot server: conf.d/20-imap.conf (commenting it out means the defaults (including IDLE) will be supported).
# Override the IMAP CAPABILITY response. If the value begins with '+', # add the given capabilities on top of the defaults (e.g. +XFOO XBAR). #imap_capability =IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS XAPPLEPUSHSERVICE ... 3. reloaded dovecot sudo doveadm reload 4. powered up iPhone and launch Mail app. I observed NO emails would appear.....NONE.... To verify this is the culprit, I reversed the steps above and immediately could see my Inbox populated. _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-le...@dovecot.org