[VOPmail Beta] Security-Mailing List

[Jinostas Panagiotis]

Hello to everybody   I have the following Problem acording the security of our mail server! We are using Vopmail Server version 4.5.186   On the Security Properties ALL THE CHECK BOXES ARE CHECKED exept 1) Slowdown after number of valid...... 2) Slowdown after number of invalid......   under the "Accept mail from these hosts" is only the "192.168.1.*" Also on MISC Properties Authenticated ETRN is checked   Lets say that the domains that we host are 2   alfa.gr beta.gr Until now if a user ([EMAIL PROTECTED]) wants to send an e-mail to [EMAIL PROTECTED] the mail server requests authentication! Thanks Grate!!!!!!   The problem is that if the same user ([EMAIL PROTECTED]) wants to send and e-mail to [EMAIL PROTECTED] th server doesn't ask for authentication Thats a problem!!!!!   To be specific there is a registry mailing list called [EMAIL PROTECTED].. Users are joining and leaving as usual but Only the [EMAIL PROTECTED] can post messages!   So lets take as an example we are out form the office (using a real ip address) using oulook express and we setup a new account on Oulook with the mail address and reply address [EMAIL PROTECTED] and trying to send and e-mail to [EMAIL PROTECTED] and the message was succesfuly send...   Am i doing anything wrong???   Please help me i think it is a big security hole   Thanks in advance