Hi Sarahowen57
Check via webmail and an Internet browser.
Select here: Sign in to TalkTalk Mail
Enter your full TalkTalk Mail email address and password, select Sign in.
Do you see a message from TalkTalk advising "Our records show that you are still accessing your email using unencrypted email settings, because of this, from 17th February you will no longer be able to receive or send emails via this email app or software"?
That means an email device has been connecting insecurely to your mailbox and as a result the device connection has been removed which is why you're seeing that the password cannot be authenticated.
If you follow the iPhone guide below does it say on your iPhone that your incoming server port is 110 or 143? If so, that's a definite reason for the last resort disconnection of the device. Or are you using an Apple device that cannot support secure mail to the required TLS 1.2 protocol? What's the iPhone and iOS operating system version?
Or is there another mail collection service, desktop, laptop, notebook, tablet, phone etc that's collecting your emails using insecure settings?
Prepare for TalkTalk Support - include in the Community Profile (not in these public posts):
Account holder name, TalkTalk home 'phone number (if not Data Only broadband)
Alternative mobile contact number. Full address with postcode (in the Location box)
Scroll down to Private notes to add the customer email address and account number
Check and Save changes
Select here: Update your profile
The TalkTalk Mail Support Hub is your go to resource for information, guides and Community support for TalkTalk Consumer home broadband and MailPlus subscribers.
Select here:
TalkTalk Mail Support
TalkTalk Mail help
Email settings and device setup guides for TalkTalk Mail
Setting up TalkTalk email on iPhone
