Uses Mailgun to deliver emails for the Mailster Newsletter Plugin for WordPress....
Allows to use multiple SMTP connection for the Mailster Newsletter Plugin...
Uses Gmail to deliver emails for the Mailster Newsletter Plugin for WordPress....
Uses Mailjet to deliver emails for the Mailster Newsletter Plugin for WordPress....
Uses MailerSend to deliver emails for the Mailster Newsletter Plugin for WordPre...
Uses SparkPost to deliver emails for the Mailster Newsletter Plugin for WordPres...