Mailinglist Archive: opensuse-security (605 mails)

["John Trickey" <JTrickey@xxxxxxx>]

> I got this message today (names have been changed to protect the
innocent!).
> Is it saying i'm blacklisted, or the host i'm emailing to is blacklisted?
>
> ----------email-------------------
>
> from localhost
>
> ----- The following addresses had permanent fatal errors -----
> (email i'm mailing to)
> (expanded from: (their local alias name))
>
> ----- Transcript of session follows -----
> ... while talking to mail-in.pol.net.uk.:(email i'm mailing to)
> >>> RCPT To:
>
> <<< 550-
> <<< 550 mail from (my emailer ip address) rejected: administrative
> prohibition (host is blacklisted)
> 550 (email i'm mailing to)... User unknown
>
> ----------email-------------------

Sorry for the long quote, but I didn't want to lose the context.

Are you on a dialup line? Do you have an upstream mailhub you should have
used? A useful reference is spam.abuse.net . There are lists of ip addresses
out there for known spam domains, open relays and dial-up lines. If you fall
into the latter, you will only be able to send mail through your ISP's hub
to a host that uses these lists. To fix, just reconfigure your mailer to use
the mailhub as its "smarthost".

For example, if we are both on dial-ups, our mail path would be:-

me -> my isp -> your isp -> you

John