Mailing doesn't work with SMTP realy without authentification

Hello,

i'm using SMTP relay between two secured zones.
Rules are simple : every mail adressed to second zone (Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.) are relayed.

So, authentification is not required, only smtp server adress and port.

Via telnet, it work fine but, when configuring PHPMailer via Projeqtor, errors occurs with "Connection failed, error #2 unable to connect".

It seems that phpmailer try to make authenticated connection but, without login and password, it can go...
 

Also noticed that changing log level in projeqtor doesn't seems to change log level in phpmailer (need to add a line phpmailer->SMTPDebug=4; in sendmail()

In reading code, it seems that no user and password make automaticaly a call to standard php mail so need to configure sendmail.
Perhaps you can correct it or be more clear in config screen (no user and no password -> use sendmail).

I confirm that with a simple sending script via PHPMailer usingthe email is correctly sent and received successfully on client side. When the same information is provided to ProjeQtOr, the email is submitted to SendMail (in my case, this is not suitable, and in the general context, the options specify "PHPMailer in SMTP mode on port 25," which does not match the observed behavior.