I am also unable to receive emails. Was down yesterday and most came through this morning I think, but now not working today. It is very frustrating, especially when unable to contact Talktalk about this. Some are bouncing, and some have been delivered 24 hours late.
Hi, we're pleased to confirm that the earlier issues accessing your emails have now been resolved however you may observe a delay in receiving emails whilst the backlog of emails within the system is processed over the coming hours. Once again we'd like to apologise for the inconvenience caused.
Outlook.com is supposed to have supported IMAP since 2013:
I've been with TalkTalk for almost 10 years - this is about as good as it gets....
Needles to say I have a multitude of "other" emails account including Gmail, Outlook.com and my own domain email via Office 365 (now called Microsoft 365 Business Standard).
I've had 100 times (min) more problems with TalkTalk compared to all the rest PLUS my employer's email (which I manage) put together.
TT (ToyTown Noddy Email) are rubbish.
P.S. If you are paying £5/month just for TT email, for £10/month you could have Microsoft 365 Business Standard. Add you own domain for a few quid a year and you can have complete control over your email name on your own domain, 50GB mailbox, 1TB cloud storage and full Office (PC and Mac).
That's what I have and am gradually moving everything off TT