Since about one month the email sync on my phone (xa2dual, Rauma 4.4) is very buggy and out of sync.
Is that something “normal” that other users experience these days?
Email syncing was never good.
If you use the IMAP-idle (always in sync) option, the problem is old and I just posted a bug report about that and some workaround here that may help you.
If you use the interval syncing option, it kinda works for me, just have in mind that the intervals may be often longer (e.g., 5 minutes usually works like 5 to 10 minutes intervals).