Question 530 5.7.0 Must issue a STARTTLS command first

[MenphisY]

Hi,
we have a prblem with our new server with Plesk. When we put all the mail info on the software Windows Live Mail, we have this error message :

Erreur de serveur : 530
Réponse du serveur : 530 5.7.0 Must issue a STARTTLS command first
Serveur : 'domain.com'
Numéro d'erreur Windows Live Mail : 0x800CCC78
Protocole : SMTP
Port : 587
Sécurisé (SSL) : Non

On plesk, we do :

Activer le service SMTP sur le port 587 sur toutes les adresses IP (sera activé sur toutes les adresses IP) -> checked
Relais -> Authentification requise :-> SMTP -->Checked

Could you help us please, because we looking for on google and we do not find the solution ?

Regards

 

[IgorG]

Please check this KB article Plesk Help Center

 

[MenphisY]

Thank you for your answer but I can't access to this page. Do you have an onther solution to access to this article ?

 

[IgorG]

Cause
TLS encryption smtpd_enforce_tls=yes is set by default in Postfix.

Resolution

1. Connect to the server using SSH.
2. Make a backup of /etc/postfix/master.cf:
   # cp /etc/postfix/master.cf{,.orig}
   
   
3. Configure smtpd_enforce_tls and smtpd_tls_security_level values in /etc/postfix/master.cf as described below:
   smtpd_enforce_tls=no
   
   Note: According to RFC 2487 this MUST NOT be applied in case of a publicly-referenced Postfix SMTP server. This option is off by default and should only seldom be used. This feature is available in Postfix 2.2 and later. With Postfix 2.3 and later use smtpd_tls_security_level instead.
   
   smtpd_tls_security_level=may
   
   Note: Opportunistic TLS: announce STARTTLS support to remote SMTP clients, but do not require that clients use TLS encryption.
   
   
4. Apply Postfix changes:
   # service postfix reload

 

[MenphisY]

I try this and I have an othe error message.

Erreur de serveur : 554
Réponse du serveur : 554 5.7.1 <XXXXXX>: Client host rejected: Access denied
Serveur : 'mail.domaine.com'
Numéro d'erreur Windows Live Mail : 0x800CCC79

 

[MenphisY]

Sorry, I post again my post :

Hi,
we have a prblem with our new server with Plesk. When we put all the mail info on the software Windows Live Mail, we have this error message :

Erreur de serveur : 530
Réponse du serveur : 530 5.7.0 Must issue a STARTTLS command first
Serveur : 'domain.com'
Numéro d'erreur Windows Live Mail : 0x800CCC78
Protocole : SMTP
Port : 587
Sécurisé (SSL) : Non

On plesk, we do :

Activer le service SMTP sur le port 587 sur toutes les adresses IP (sera activé sur toutes les adresses IP) -> checked
Relais -> Authentification requise :-> SMTP -->Checked

Could you help us please, because we looking for on google and we do not find the solution ?

Regards

 

[IgorG]

If option

smtpd_tls_security_level=may

didn't help (Although it should help) I suggest you contact Plesk Support Team.