Help!
I've been trying to figure out what how to stop an open relay problem I have on a new server of mine running DA.
To the best of my knowledge and testing, you cannot send from a domain NOT hosted on my server to another domain not hosted on my server.
However, you CAN for some reason send from anyuser@ any of the domains hosted on my server to anywhere else. Authentication for some reason is not required. In this particular instance the particular user that the spammers are using doesn't even exist, just the domain does.
****FIXED****
Don't put the domains you host in whitelist_domains and you won't have this problem.
I've been trying to figure out what how to stop an open relay problem I have on a new server of mine running DA.
To the best of my knowledge and testing, you cannot send from a domain NOT hosted on my server to another domain not hosted on my server.
However, you CAN for some reason send from anyuser@ any of the domains hosted on my server to anywhere else. Authentication for some reason is not required. In this particular instance the particular user that the spammers are using doesn't even exist, just the domain does.
****FIXED****
Don't put the domains you host in whitelist_domains and you won't have this problem.
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