SMTP Debug Tool Alternatives

EmailEngine is a self-hosted application that opens IMAP and SMTP connections against registered email accounts to translate API requests to IMAP commands, send emails, and monitor changes on these accounts. It...

It is a fantastic way to manage connections to multiple email accounts and download email messages from all of those accounts. Easy to configure new accounts and it even works with O365 auth via Azure. I found ...

Eurekamail.co is an Email Marketing Management System with the flexibility to bring your own SMTP or Email API on board, this allows for efficiency, affordability, and running email campaigns in high usability ...

3. Serverless SFTP

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True serverless SFTP that scales down to zero cost and up to – well, give it your best.

Test and debug your SMTP connection. Quickly and for free.