Ask us about your TalkTalk email account and Webmail.
6 hours ago
I have not been able to receive or send emails from my @Lineone.net account since 25 Jan 25 using Mail on either my iPad or Mac.
I have reset password but no joy and I have changed incoming to mail.talktalk.net and outgoing to smtp.talktalk.net
I can see & send mail in webmail but that is painful - I don't understand why it is not longer working in Mail.
6 hours ago
Have you checked the settings against those shown on the help page?
https://community.talktalk.co.uk/t5/Articles/Setting-up-email-in-Mac-mail/ta-p/2894295