Outlook 2013 just stopped recieving email from yahoo email IMAP/SMTP

Question

Outlook 2013 just stopped recieving email from yahoo email IMAP/SMTP

Wart Pendragon 10

Until two weeks ago my version of Outlook 2013 (modified in 2025) would receive emails from an email account hosted at Yahoo but did not have Yahoo.com as part of my email address. Outlook 2013 will still send emails. I have checked the SMTP and IMAP settings against what Yahoo publishes as proper for IMAP server settings and they are correct. and haven't changed in several years. As far as I know i had made no changes to the settings of the Outlook 2013 settings and there have been no updates.

I have installed the new Outlook 365 and added the Yahoo account and have no problem sending and receiving emails to other accounts and receiving from other accounts.

I would like to keep the Outlook 2013 active as within it I can set up rules for how emails from certain senders with certain subject headings are handled, which functionality I do not find in the new outlook.

Any help would be appreciated.

Hornblower409 14,970 Reputation points

2026-05-22T10:39:11.3633333+00:00

@Wart Pendragon said

Until two weeks ago my version of Outlook 2013 (modified in 2025) would receive emails from an email account hosted at Yahoo

There has been an ongoing problem with Outlook receiving emails from Yahoo. I would wait a few days to see if Microsoft fixes the problem. Don't make any changes to your Classic Outlook. It's not your fault. You can use New Outlook in the interim.

See the Answer by "Chloe-L May 19 2026" (and the latest Comments on that Answer) in
https://learn.microsoft.com/en-us/answers/questions/5892105/unable-to-recieve-emails-in-hotmail-com-account

inbound mail from Gmail (and a few other external providers, including Yahoo) being heavily delayed or not arriving at all, while outbound mail from Outlook works normally.

If your Classic Outlook still isn't working with Yahoo after waiting for a fix, come back and we'll talk about what to try next.
Wart Pendragon 10 Reputation points

2026-05-22T14:11:06.2+00:00

Hornblower409 - thank you for the reply. I'll give it a bit more time.
Hornblower409 14,970 Reputation points

2026-05-22T18:37:27.22+00:00

@Wart Pendragon said

new Outlook ... have no problem sending and receiving emails to other accounts

Your post in the https://learn.microsoft.com/en-us/answers/questions/5892105/unable-to-recieve-emails-in-hotmail-com-account thread made me think about your case more carefully and you don't fit the pattern. For anyone else who was having problems receiving from Yahoo, it affected all of their Outlook clients.

We need to do some more poking around on your Classic Outlook client.

1 -- When you do a Send/Receive -> Send/Receive All Folders do you see any errors?

2 -- Anything in your Sync Issues folders about Yahoo sync?

How to View the Sync Issues Folders in Classic Outlook
See the Answer by "Hornblower409 May 6 2026" in
https://learn.microsoft.com/en-us/answers/questions/5687493/outlook-how-to-view-and-cleanup-sync-error-folder
Wart Pendragon 10 Reputation points

2026-05-23T15:33:14.3+00:00

Thank you for the help. The instructions on cleaning out the link you provided and the instructions provided by Francisco Mantilla to clean up the logs helped. In addition to what he suggested, I went online to the Yahoo and deleted a file that appeared in the log as having an error synchronizing. Then I closed the Outlook and reopened it and it synced up.
Wart Pendragon 10 Reputation points

2026-05-23T15:36:55.8833333+00:00

the AI generated answer above is wrong. Yahoo can still be accessed via IMAP on a third party application.
Hornblower409 14,970 Reputation points

2026-05-23T20:52:03.38+00:00

@Wart Pendragon said

I went online to the Yahoo and deleted a file that appeared in the log as having an error synchronizing

Can you provide any details on exactly how you did this? For future reference.

1 answer

Your answer

Hornblower409 14,970 Reputation points

2026-05-22T10:39:11.3633333+00:00

@Wart Pendragon said

Until two weeks ago my version of Outlook 2013 (modified in 2025) would receive emails from an email account hosted at Yahoo

There has been an ongoing problem with Outlook receiving emails from Yahoo. I would wait a few days to see if Microsoft fixes the problem. Don't make any changes to your Classic Outlook. It's not your fault. You can use New Outlook in the interim.

See the Answer by "Chloe-L May 19 2026" (and the latest Comments on that Answer) in
https://learn.microsoft.com/en-us/answers/questions/5892105/unable-to-recieve-emails-in-hotmail-com-account

inbound mail from Gmail (and a few other external providers, including Yahoo) being heavily delayed or not arriving at all, while outbound mail from Outlook works normally.

If your Classic Outlook still isn't working with Yahoo after waiting for a fix, come back and we'll talk about what to try next.
Wart Pendragon 10 Reputation points

2026-05-22T14:11:06.2+00:00

Hornblower409 - thank you for the reply. I'll give it a bit more time.
Hornblower409 14,970 Reputation points

2026-05-22T18:37:27.22+00:00

@Wart Pendragon said

new Outlook ... have no problem sending and receiving emails to other accounts

Your post in the https://learn.microsoft.com/en-us/answers/questions/5892105/unable-to-recieve-emails-in-hotmail-com-account thread made me think about your case more carefully and you don't fit the pattern. For anyone else who was having problems receiving from Yahoo, it affected all of their Outlook clients.

We need to do some more poking around on your Classic Outlook client.

1 -- When you do a Send/Receive -> Send/Receive All Folders do you see any errors?

2 -- Anything in your Sync Issues folders about Yahoo sync?

How to View the Sync Issues Folders in Classic Outlook
See the Answer by "Hornblower409 May 6 2026" in
https://learn.microsoft.com/en-us/answers/questions/5687493/outlook-how-to-view-and-cleanup-sync-error-folder
Wart Pendragon 10 Reputation points

2026-05-23T15:33:14.3+00:00

Thank you for the help. The instructions on cleaning out the link you provided and the instructions provided by Francisco Mantilla to clean up the logs helped. In addition to what he suggested, I went online to the Yahoo and deleted a file that appeared in the log as having an error synchronizing. Then I closed the Outlook and reopened it and it synced up.
Wart Pendragon 10 Reputation points

2026-05-23T15:36:55.8833333+00:00

the AI generated answer above is wrong. Yahoo can still be accessed via IMAP on a third party application.
Hornblower409 14,970 Reputation points

2026-05-23T20:52:03.38+00:00

@Wart Pendragon said

I went online to the Yahoo and deleted a file that appeared in the log as having an error synchronizing

Can you provide any details on exactly how you did this? For future reference.

Answer 1

Yahoo has disabled basic authentication for IMAP/SMTP and now requires modern authentication (OAuth). Outlook 2013 does not support modern authentication for Outlook.com/Exchange-style accounts and is also affected when providers like Yahoo remove basic auth, so the account can often still send (cached auth) but stops receiving.

Because Outlook 2013 cannot be updated to support modern authentication for these accounts, the reliable options are:

Continue using the new Outlook (Microsoft 365) for this Yahoo account, where send/receive already works.
If Yahoo still allows POP3 with an app password for this mailbox, reconfigure the account in Outlook 2013 as POP3 instead of IMAP, using the POP server and ports from Yahoo plus the app password. This mirrors the documented workaround of switching from IMAP to POP when IMAP authentication fails:
- In Control Panel → Mail → Show Profiles → Add, create a new profile.
- Choose Manual setup or additional server types → POP or IMAP.
- Select POP3 as Account Type and enter Yahoo’s POP/SMTP server names, ports, and security settings, plus the app password.
- Test account settings until both tests succeed, then set this new profile as the default.

If Yahoo has fully blocked basic auth for both IMAP and POP on this account, Outlook 2013 will not be able to connect, and the only practical solution is to use a newer Outlook client that supports modern authentication (such as the Outlook included with Microsoft 365 or the free Outlook for Windows) and configure rules there.

References: