Quote:
Originally Posted by OfMacAndMen  I have a post in about Open Relay. ( http://www.zimbra.com/forums/install...elay-help.html)
I was told that Zimbra has open relay disabled by default. After running test from Mail relay testing. It reported no relays accepted.
But if I telnet into my server from an OUTSIDE network and run the following command:
telnet server.myserver.com 25
Trying myipaddress...
Connected to server.myserver.com.
Escape character is '^]'.
220 server.myserver.com ESMTP Postfix
helo server.myserver.com
250 server.myserver.com
mail from: anyone@myserver.com
250 Ok
rcpt to:vince@myserver.com
250 Ok
data
354 End data with .
test message
.
250 Ok: queued as 2EA2577034
I will receive an email from "undisclosed-recipients:;"
I have only Macs and no virus.
If an Zimbra employee would like to try this please contact me. |
If the recipient is on your domain, that's not open relay.
Relay is when a user who is not on your domain uses your server to send mail to a differing domain.
If you blocked what you did, then no one would ever be able to get mail. . . . because the rcpt to address is on your machine.