I note you first posted on 21 February but only got around to verifying your Community membership on 26 March after making three more posts that I've merged together into this one topic now that all four posts have been published today.
In the last 5 weeks I assume you've been using TalkTalk Mail webmail access. If you previously saw the message from TalkTalk advising "Our records show that you are still accessing your email using unencrypted email settings..." then the email address receiving that notification was limited to webmail only access as a last resort action by TalkTalk to stop the use of email connections not secured by TLS 1.2 encryption.
TalkTalk Mail webmail is secure by design when using an up to date Internet browser.
Select here: Sign in to TalkTalk Mail
Enter your full TalkTalk Mail email address and password, select Sign in. Check that you can compose and send and receive mail sent to the same mailbox address.
If your mailbox is limited to webmail only access for both sending and receiving mail, you will be able to get access restored to email apps or email software, including mail collection services, passwords will then re-authenticate, so long as you're ready to use supported email software and secure email settings for all the ways you view emails.
We can advise on device and software compatibility with TLS 1.2 encryption and provide customer setup guides. Just let us know each mail collection service, each device, its operating system and email software including version that are in current use.
Outlook 2019 is capable of secure mail. Do you use any other email software or mail collection service?
For a definitive check of email settings take screenshots of the incoming and outgoing server settings, image edit to obscure the first part of the email address and upload here using the Camera icon (desktop browser) or Picture icon (mobile browser) above this reply area.
When you confirm the secure settings are ready I can request TalkTalk Support to restore full access. TalkTalk Support will respond here and access will be restored as soon as reasonably possible.
Prepare for TalkTalk Support - include in the Community Profile (not in these public posts):
Email account holder name
Scroll down to Private notes to add the email address(es)
and TalkTalk or MailPlus customer 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
Using TalkTalk Mail
Email settings and device setup guides for TalkTalk Mail
About TalkTalk Mail Plus
