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!

Again spam problems !!!

Discussion in 'General Discussion' started by Radio_Head, Mar 18, 2003.

  1. Radio_Head

    Radio_Head Well-Known Member

    Joined:
    Feb 15, 2002
    Messages:
    2,051
    Likes Received:
    1
    Trophy Points:
    343
    Anyone with a valid email could use the ip address of my dns as SMTP server and send email without problems and without password.

    Anyone !!!

    What I have to do to stop it ? Please help !!!
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  2. Radio_Head

    Radio_Head Well-Known Member

    Joined:
    Feb 15, 2002
    Messages:
    2,051
    Likes Received:
    1
    Trophy Points:
    343
    I am using Group Mail plus .


    a) I insert the ip address of my box on SMTP mail server
    (without smtp authentication) .

    b) I insert 10 test email addresses to send a test message.

    c) I insert a false "From" emai for example usfo2i2werh@hotmail.com


    I send the message using bulk mode .

    My box send the messages !


    Is there any way to avoid this ; how to activate smtp authentication to avoid the problem above?

    Thank you!!
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. rpmws

    rpmws Well-Known Member

    Joined:
    Aug 14, 2001
    Messages:
    1,824
    Likes Received:
    7
    Trophy Points:
    318
    Location:
    back woods of NC, USA
    humm ..I am wondering if exim knows about your incoming IP becuase you have been activly checking pop sessions ? can you use dial-up and dial up somewhere and test this?
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  4. Radio_Head

    Radio_Head Well-Known Member

    Joined:
    Feb 15, 2002
    Messages:
    2,051
    Likes Received:
    1
    Trophy Points:
    343
    you are right . The problem is not there . I was able to send because I checked email before.

    Infact if I don't check email for 30 minutes and replicate the problem above I receive an ip denied permission error .


    Yesterday I had problem with an user because I provided him (about 1 month ago) a customized A Record .

    It was a big error , because using that A Record he was able to bypass all whm email restrictions I had set .
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #4 Radio_Head, Mar 18, 2003
    Last edited: Mar 18, 2003
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