phpBB supports sending email over SMTP. To have phpBB relay email through Mail250 go to Client Communication > E-mail settings in the admin panel and change:

• Use SMTP server for e-mail – Yes
• SMTP server address: – smtp.swipemail.in
• SMTP server port – 587
• Authentication method for SMTP – PLAIN
• SMTP username – mail250_username
• SMTP password – mail250_password