on 03-08-2021 09:48 AM
I have a Tiscali email address. This morning I get the following message when attempting to send emails. Message could not be sent to the following recipients: [@] (550 - 550 5.1.0 Aq1umYBwZ2YhL Sender Domain Invalid (TT420))
on 03-08-2021 09:51 PM
This issue has been fixed. You should be receiving and sending mail messages as normal in both webmail and email clients.
If using an email client check the recommended email settings are in use.
Select here: TalkTalk Mail Support Hub