Old pop3 mail disapears after 5 weeks from iPhone
My friend has a BTConnect Email set up as POP on an iPhone, and has noticed that old emails seem to disappear off the phone after around 5 weeks, I have checked the Settings on the Phone and under Incoming Settings Delete from Server is set to NEVER, also under Deleted Messages Remove is also set to NEVER.
On the office PC the email client is set to remove messages from the server after 31 days and does manage to keep all old messages, that is also set to POP however, this should not affect the phone as my phone is also set to POP and any messages downloaded to the Phone or PC are stored on the device and it should not matter when the emails are deleted from the btconnect server as being POP as copy should always be stored on the Phone.
This apparently has only started happening in the last year.
Can anyone shed some light on why this is happening, as I am scratching my head on this one. I know that going down the exchange route would be better than POP but my boss wants to keep the BT Connect Email address which only offers POP as a mail protocol I cannot seem to convince him to change.
iPhone 13 Pro