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SMTP mail.btinternet.com servers not authenticating. Logon's rejected

allendeesarafin — Sat, 24 Jul 2021 09:58:17 GMT

Seems there is a general issue going on at the moment.

The DNS resolves to multitude of different IP addresses, and keeps changing and swapping IP's.

None of the IP addresses authenticate.

Re: SMTP mail.btinternet.com servers not authenticating. Logon's rejected

allendeesarafin — Sat, 24 Jul 2021 10:06:43 GMT

@BT, when will this be resolved?

SMTP mail.btinternet.com servers not authenticating. Logon's rejected

allendeesarafin — Sat, 24 Jul 2021 10:12:51 GMT

When will this be solved?

Re: SMTP mail.btinternet.com servers not authenticating. Logon's rejected

imjolly — Sat, 24 Jul 2021 10:16:47 GMT

are you using web mail or outlook or a mail client?

just tried sending and receiving on my btinternet.com account and works ok

Re: SMTP mail.btinternet.com servers not authenticating. Logon's rejected

allendeesarafin — Sat, 24 Jul 2021 10:37:26 GMT

Mail clients, using SMTP / IMAP. Also doesn't work on the smartphones using a different data carrier.

Re: SMTP mail.btinternet.com servers not authenticating. Logon's rejected

imjolly — Sat, 24 Jul 2021 10:55:27 GMT

just tried again using android and sending and receiving works no problem I am not a BT mobile customer

are you a BT broadband customer?

Re: SMTP mail.btinternet.com servers not authenticating. Logon's rejecteda

Ribblelancs — Sat, 24 Jul 2021 11:19:36 GMT

Have you recently setup 2 step authentication?

I recently set this up and a password change was involved.....I came unstuck with the iPad BT mail, where on my particular setting, the outgoing smtp required the password. This had changed and blocked outgoing mails.

Check your email settings.