topic Re: Undeliverable to gmail in Email

Undeliverable to gmail

JoMarvel — Thu, 09 Mar 2023 15:03:12 GMT

I have a tiscali.co.uk email address (from way back, gradually migrated to TalkTalk) with mail.talktalk.net as my outgoing server. All emails to gmail addresses are now being notified as undeliverable, failing DMARC or SPF or DKIM authentication checks. What can I do to be sure that my messages go out with the necessary authentication checks?

Martin

Re: Undeliverable to gmail

JoMarvel — Thu, 09 Mar 2023 15:13:55 GMT

Correction: Outgoing server is smtp.talktalk.net. I believe smtp.tiscali.net no longer works.

Re: Undeliverable to gmail

Gondola — Thu, 09 Mar 2023 15:52:28 GMT

Test the sending in TalkTalk Mail webmail.

Select here: Sign in to TalkTalk Mail

Enter your full TalkTalk Mail Tiscali email address and password, select Sign in.

Do you get signed in OK and successfully send mail to Gmail?

If you're using an email client which one? Does it support encryption to TLS 1.2 standard? Are you sending from port 587 using the smtp.talktalk.net host name and STARTTLS encryption with authentication by the Tiscali Username (full email address) and tiscali password and, if needed, My outgoing server requires authentication ticked?

Re: Undeliverable to gmail

JoMarvel — Thu, 09 Mar 2023 16:08:24 GMT

Thanks for quick reply. Webmail worked sending to my (only) gmail address. As client I'm using Thunderbird, and was on SSL/TLS security. I have changed that to STARTTLS and Authentication is set to Normal password. I'll do another test from Thunderbird.

Re: Undeliverable to gmail

Gondola — Thu, 09 Mar 2023 16:10:30 GMT

Let us know when you're back in control.

Re: Undeliverable to gmail

JoMarvel — Thu, 09 Mar 2023 16:10:39 GMT

Thunderbird test worked.

Re: Undeliverable to gmail

Gondola — Thu, 09 Mar 2023 16:13:22 GMT

If all is OK now, to close this topic as Answered please scroll to my first reply, select the triple dots menu bottom right of that post and select the menu item Accept as Solution.

Re: Undeliverable to gmail

JoMarvel — Thu, 09 Mar 2023 16:19:58 GMT

I think it's working now. Time will tell. Thanks.

Re: Undeliverable to gmail

Gondola — Thu, 09 Mar 2023 16:39:08 GMT

Great. Don't forget Accept as Solution to close this topic so TalkTalk Support know it's been answered and solved.

Re: Undeliverable to gmail

Chris-TalkTalk — Fri, 10 Mar 2023 14:16:23 GMT

That's great news JoMarvel, glad to hear that you've managed to fix the problem with Gondola's assistance 🙂

Chris