If your Yesware login expires, Mail Merge, Send Later, Reminders, CRM Sync, and several other Yesware features will not work properly until you log back into your account. You can log into your Yesware account here. You can also visit app.yesware.com and choose “Sign in with Google” to log in.
This may have happened because you changed your Google password. Consequently, Yesware is unable to send emails on your behalf or detect replies.
Please note that any failed Mail Merge, Send Later messages and Reminders cannot be restarted.