Problem with SMTP authentication in PHP using PHPMailer, with Pear Mail works

Question

I´m having trouble sending a e-mail with the PHPMailer class, but it works with PEAR Mail::factory.

I guess the problem is with the SMTP authentication, but I couldn´t f

Answer 1

Exim 4 requires that AUTH command only be sent after the client issued EHLO - attempts to authenticate without EHLO would be rejected. Some mailservers require that EHLO be issued twice. PHPMailer apparently fails to do so. If PHPMailer does not allow you to force EHLO initiation, you really should switch to SwiftMailer 4.