Resend via cron the messages in Postman SMTP that have an error message.

Generate Postman Collection (v2.1.0) or OpenAPI 3.0 documentation for the WordPress REST API from the admin UI.

Send, log, and get notified when your emails are failing. Plus a unique option for secondary backup SMTP so your emails will never stop. Supports everything: SMTP, Gmail, Mailgun, office365, SendGrid, Elastic Email and OAuth 2.0!