1and1 hosting - problems with smtp auth.

[Chaberrr]

I had some SMTP auth error problem at 1and1 hosting.

Finally I've found the solution here:
https://webolio.wordpress.com/2008/03/02/phpmailer-and-smtp-on-1and1-shared-hosting/

"After googling for a solution and trying different smtp servers, accounts and smtp ports, I decided to switch to sendmail and it worked like a charm! All I needed to do was replace $mail->isSmtp() with:
$mail->isSendMail()"