-`ext_port`: `<integer> (1 - 65535)` ('default =' `26`)::
+`ext_port`: `<integer> (1 - 65535)` ('default =' `25`)::
SMTP port number for incoming mail (untrusted). This must be a different number than 'int_port'.
-`int_port`: `<integer> (1 - 65535)` ('default =' `25`)::
+`int_port`: `<integer> (1 - 65535)` ('default =' `26`)::
SMTP port number for outgoing mail (trusted).