The GlockApps Bounce Monitor track bounce emails via webhooks and via IMAP connections. If you use Amazon SES, SendGrid, SparkPost or Mailgun delivery service, you can track bounce emails via webhooks. If you use a different email service provider or your own SMTP server, you can track bounce emails via IMAP connection to your mail server.
You can check out these tutorials for more information:
How to Track Amazon SES Bounces with GlockApps
How to Track SendGrid Bounces with GlockApps
How to Track SparkPost Bounces with GlockApps
How to Track Mailgun Bounces with GlockApps
How to Process Bounce Emails via IMAP