Sent emails marked as spam

[IsVicThere]

Since Saturday, all of my emails I send from my talk talk account, whether via Outlook or Talk-talk Web mail (both on Edge  Chrome) are being marked as spam. They are then either blocked by the recipient (companies etc) or they go into the spam box when sending to friends - even if the friend puts me on their trusted list.

Even if I auto-forward incoming emails to my gmail address and reply from there, they still seem to be "tarnished" with the spam marker. If I send directly from my gmail account, all is fine.

Anyone had a similar experience or can help?

[nambuso-TT]

Hi there, upon reviewing your account, I see that a case was opened on December 15, 2025, following your report that emails sent from your TalkTalk address are being returned as blocked, while you continue to receive incoming emails. This case has been assigned to our specialist team for further investigation. I will also add a note to your account indicating that you have reached out to us again.Thanks. 

[IsVicThere]

thanks

[Philile-TT]

@IsVicThere thank you for that information I will run a diagnostics test. 

[IsVicThere]

As I said, emails to those with a spam box receive emails in their spam box it appears. However, those that don't have a spam box reject the email and I get an undeliverable message. I can't guarantee that this happens to all emails as you can never prove the positive but I haven't had one yet that has not either been rejected or ended up in the spam box.

[amahle-TT]

Please confirm if it happens to all email addresses or specific ones?

[IsVicThere]

As I said in my original description "they go into the spam box when sending to friends - even if the friend puts me on their trusted list."

Emails to anyone who doesn't have a spam box (companies, organisations etc), they get bounced back.  Also, when I send to "test-mail@talktalk.net", as suggested by talktalk support, the email comes back undeliverable.

[amahle-TT]

Thank you, can you please request that your contacts explicitly add your email to their whitelist or trusted senders and let us know how it goes.

[IsVicThere]

Hi @fr8ys. Thanks for your response.  I have added my Talktalk phone number and the affected email address as requested.

Thanks

[amahle-TT]

Hi there @IsVicThere, please do let us know when you are done. Thanks @fr8ys.

[fr8ys]

Hi,
You are in the staff's queue for a response.
For a quicker reply can you please ensure you have your personal information up to date in your profile including your TalkTalk landline phone number so your account can be traced. Link here - https://community.talktalk.co.uk/t5/user/myprofilepage/tab/personal-profile:personal-info

Van you also put your affected email address(es) in your private notes field of your profile.

If you are unsure of your phone number, you can find this in My Account or dial 17070 from your landline phone and this will confirm the number for you.
You can also add your account number in the private notes field, which only you and the support staff can view.
Please post back when done.
Thank you