Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

[MYSTERY] Emails being sent under account with email disabled - how to limit relays

Discussion in 'E-mail Discussion' started by rockethead, Jun 23, 2011.

  1. rockethead

    rockethead Registered

    Joined:
    Jun 23, 2011
    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    51
    We have a dedicated server from GoDaddy running CENTOS 5.5 i686 standard.

    We only have four or so sites on it. The other day, we receive an email that we have reached our 1000 smtp limit. This was a mystery since we use google apps for email and don't get near 1000 emails for out sites using the contact forms and such.

    So I look at the relays and sure enough someone, probably a spammer, has used our smtp to send out their filth. I set email accounts and hourly emails to 0, remove the email in dns, and removed an email form they put on your server.

    However, they are still somehow sending mail using our server. I'm going to terminate the account and reinstall, but I would love to know how this hacker is doing this and what I can do to prevent it in the future.

    I guess I just need to know how to limit the relays to our ip? Is this the solution?

    Thanks
     
    #1 rockethead, Jun 23, 2011
    Last edited: Jun 23, 2011
  2. Infopro

    Infopro cPanel Sr. Product Evangelist
    Staff Member

    Joined:
    May 20, 2003
    Messages:
    16,309
    Likes Received:
    393
    Trophy Points:
    583
    Location:
    Pennsylvania
    cPanel Access Level:
    Root Administrator
    Twitter:
    Re: [MYSTERY] Emails being sent under account with email disabled - how to limit rela

    In this account's cPanel > Set Default Address, section what are the settings set to here?
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
Loading...

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice