* Matthew McGehrin <drinking.cof...@gmail.com>:
> Hello.
> 
> Your assuming that port 25 needs to be open on the local side to send 
> mail. this is not the case. There are two possibilities here.
> 
> 1. A dirty IP was assigned to your server, and that the previous owner 
> had a spam issue.

Give the shortages of ipv4 addresses, this is often the case

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