IMAP error: too many simultaneous connections.

IMAP error: too many simultaneous connections.

Hello,

In the last few days I can't connect to my account from 3ᴿᴰ party applications to my IMAP account because I get the IMAP error of too may simultaneous connections.
I have configured the account only on my PC and a smartphone and it has always been working correctly.
Now I can reach my email only through webmail or Zoho app.

Can you please check this on your side?
I have already wrote to support(at)zohomail.com but I didn't get an answer yet.


Thank you