[MlMt] Yahoo sign-in problem

[Dave C]

I have a few Yahoo accounts. One of them is giving me log-in troubles.

MailMate puts up an error message when it attempts to log into the SMTP 
server:

Server response: “A1 NO [AUTHENTICATIONFAILED] LOGIN
Invalid credentials”.
Command attempted: “A1 LOGIN ••••••••••”.

I have no problem logging into the account using the web browser 
interface.

I used to get this all the time because I use a VPN and when the VPN 
server is changed, Yahoo objects because it sees a strange IP address. I 
usually just wait some random amount of time (immediate retries would 
fail) and I could then log in again.

But recently I’ve not been using the VPN and I’m getting this error 
consistently (it never succeeds in connecting to the Yahoo mail server).

Maybe this is related to the 2-step verification that Yahoo has been 
touting, but I don’t think so: none of my other Yahoo accounts is 
having this issue.

Has anyone else come across this issue and has found a solution?

Thanks,
Dave