on 11-04-2018 10:54 AM
(writing on regards to my boss, bare with me for the responds)
on 11-04-2018 11:12 AM
It's probably something stopping the sync of the email app to the server. First try a power off of the iPhone and repower. Always a good first start.
On the iPhone:
I assume you're using IMAP settings with the email app?
Check the settings are correct: TalkTalk IMAP settings (Click here).
If all looks ok then I'll alert the TalkTalk support email expert to try a mailbox repair job to see if that re-commences regular syncing to the email server.