SMTP-code

Omschrijving

SMTP Code 1.0.1 : Cannot open connection

The sending mail server is unable to start an SMTP session with the receiving mail server.

Typical causes include:

• An Incorrectly spelt mail server

• An IP address that does not exist

• An SMTP port that does not exist

• The receiving mail server will not accept SMTP connections on the specified port

• A process is already using the default SMTP port (25)

SMTP Code 1.1.1 : Connection refused

The sending mail server is unable to communicate with the receiving mail server

Typical causes include:

• A Linux email system software configuration error.

• A newly installed or configured firewall preventing connection to the receiving mailserver

• Incorrect hostnames and/or IP addresses