thanks JPM121,
Port 25 is not blocked at server-side. We Cannot.
But you're right, relay on our SMTP is not allowed. That means that the server will only accept messages coming from other providers if they are destinated to our users, but only our users (filtered by IP adresses) can send...
The answer of your question depends of what equipment or software do you use for NATting. Nat issetf does not forward broadcast. Nat uses outgoing packet source ip, source and destination ports to know how to where incoming packet must be translated.
If an incoming packet is received without...
Hi there,
I do technical support for a cable ISP. Since few days we receive many complaints from users unable to send or to receive mail.
When I ask them to manually connect to the mail server (telnet mail.mydomain.com 25) they get a refused connection or just receive no text in their telnet...
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