"WP Mail Bank - SMTP Plugin that Solve Your Email
WP Mail Bank allows you to configure a mail server which
handles all outgoing email from your website & maximizes
the deliverability of your emails.
What Mail Bank can do for you?
WP Mail Bank is a plugin that fixes email deliverability
issues and also generates email logs for each outgoing
emails from your website. It also provides different
authentication methods to send emails securely...!"