It’s possible Zoho made some changes on their side. Sometimes, even if your regular password works, Zoho requires an app-specific password for external apps like SendPulse to connect via IMAP.

You can create this in Zoho’s security settings and use it instead of your regular password. If that doesn’t help, contacting Zoho support is the best way to check any account-specific restrictions or blocks

Sendpulse sent me this after attempting to reconnect my zoho account with Sendpulse. It worked previously, but after disconnecting and reconnecting it no longer works.

I even tried an app specific password, which does take me to the second page, but still gives me the error message. It translates to: “Something went wrong. Please check the details and try again."