rogeratbing on "[Plugin: Contact Form 7] Migration to new server requires SMTP to send CF7 forms"

Thanks Takayuki! My issue is not a new plugin, but a change in how the site is configured. Our host is smaller and tries to be very buttoned-down with regard to site safety. He has insisted that all emails must now use SMTP protocol and not PHP as CF7 is configured to work. So I am trying to find out how to most effectively get CF7 to work that way.