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Let op Dit zijn algemene SMTP-foutcodes, geen ANVA-foutcodes.

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