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  1. #1
    Join Date
    Oct 2004
    Location
    Canada
    Posts
    61

    are they trying to rely email through my server?

    I was looking at the events viewer and I noticed several warnings, that the smtp server failed to deliver a message to (IP address and domain) because they couldn't authenticate.

    I checked the domains, and they are all portals in places such as Brazil, Korea, Poland and Latvia.

    Of course I checked the security settings of my smtp service (I am running Windows server 2003) and it wouldn't allow to rely unauthenticated users (the default), but in any case, I required only local account users can use the service and then I stopped it since I don't use it at the moment

    nobody annoys me more than spammers and the thought of them using my server just drove me nuts. they won't

  2. #2
    Join Date
    May 2005
    Location
    New York
    Posts
    736
    looks like a probe for open-relay mail servers.
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