Mailboxes can become disconnected when:
Your admin changes security settings
Your Google or Microsoft 365 password changes
It has been more than 90 days since SigParser last checked your mailbox.
SigParser will send you 5 emails over 2 weeks to let you know we can't connect. But these emails can be easy to miss if you are busy.
Reconnecting a Mailbox
Log in to SigParser
Click on the Mailboxes link in the top blue bar
Find your mailbox in the list of mailboxes and click the name
Click the Reconnect button
Sign in to your email account to reconnect to SigParser
Once reconnected scroll to the bottom of the mailbox details page. You should see a job running fetching the latest emails.