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Yahoo Emails are not received any more in Thunderbird since 2 weeks, OAuth2 had worked before since March 2026

Thunderbird Send and receive email
wasser7777mann replied Duela 2 aste
wasser7777mann
wasser7777mann

Hi, I'm using Thunderbird for Yahoo Emails since many years (it's great!).

In March/April 2026 I changed the Server Settings (authent. method) to OAuth2, it has worked properly.

But since 23.9.2026 I cannot receive Emails in Thunderbird any more (only for the Yahoo account, I have another Email Account working properly in Thunderbird). Bottom text is "Message 1 of 33 will be downloaded", but nothing is downloaded after severals minutes.

My Yahoo Account in the Firefox Browser works properly, its ONLY Thunderbird (and probably OAuth2?). I have removed my Oauth2 Password in saved password of Thunderbird and generated a new one, but that does not help.

So if this issue cannot be solved, I will use another Email Program instead of Thunderbird!

Kind regards Soenke

Hi, I'm using Thunderbird for Yahoo Emails since many years (it's great!). In March/April 2026 I changed the Server Settings (authent. method) to OAuth2, it has worked properly. But since 23.9.2026 I cannot receive Emails in Thunderbird any more (only for the Yahoo account, I have another Email Account working properly in Thunderbird). Bottom text is "Message 1 of 33 will be downloaded", but nothing is downloaded after severals minutes. My Yahoo Account in the Firefox Browser works properly, its ONLY Thunderbird (and probably OAuth2?). I have removed my Oauth2 Password in saved password of Thunderbird and generated a new one, but that does not help. So if this issue cannot be solved, I will use another Email Program instead of Thunderbird! Kind regards Soenke

All Replies (1)

wasser7777mann
wasser7777mann Question owner

Chosen Solution

Hi,

I tried again today using my Laptop (my 2. computer) , I had to confirm my Yahoo Login via Smartphone confirmation, it looked fine, but download emails still did not work.

So I entered Yahoo WebMail, deleted some Emails (from Inbox, all looking ok) dated directly after the last downloaded (in Thunderbird) Email ... and checked Thunderbird again - now it worked :-D!

Obviously ONE EMail (could not be downloaded) has BLOCKED the download. Don't know why, that email ist deleted (so not available anywhere).

So I have solved this issue ... next time I will check Yahoo Webmail in detail concerning blocking Emails (maybe very (!) large attachement?) ...

Kind regards Soenke

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