I have just done a security check at the website "www.hackerwhacker.com"
It gave me the following message regarding mail relay security on my
mail server:
1. TEST: Checking normal relaying capability...
MAIL FROM: [EMAIL PROTECTED]
(250) sender accepted
[EMAIL PROTECTED]
(471) cannot be accepted now: path is unknown.
MAYBE. Your SMTP server has what appears to be a non-standard
return code. The message should provide you information. Negative
sounding responses probably indicate that relaying is
denied and you are SAFE.
2. TEST: Checking sneaky <"[EMAIL PROTECTED]"> ...
MAIL FROM: [EMAIL PROTECTED]
(250) sender accepted
<"[EMAIL PROTECTED]">
(250) <"[EMAIL PROTECTED]"> recipient accepted
UNSAFE. Your SMTP server is permitting relaying with this method.
Spammers can use it.
It appears I am secured against unauthorised mail relay from test 1 but
test 2 that uses the "sneaky" method says I am vulnerable.
Can someone please explain to me what method has been used here and how
I protect against it.?
Thanks for any help.
Phil
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