spam better

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wkuypers
Posts: 79
Joined: Mon Nov 28, 2005 4:34 am

spam better

Post by wkuypers »

Hello,

Still looking to combat spam through the servers. The client validity checks are not sufficient, are kill too much. We need more possibilities aside Spamassassin.

Would be possible to check not only the X-Envelope-From but also the From record of emails. So blacklisting will be more effective.

In blacklisting we need bulk insertion for domain names.

Would it be an idea to mutualize blacklist that exist within Rollernet. I think that there is a big chance that we all introduce the same list.

The possibility to whitelist not ip addresses but dns record corresponding to the ip address. In stead whitelisting the ip addres we could whitelist ***.google.com

To be able to blacklist a domain AND all its subdomains
for example spammers have the do.net and than spam is coming from
r1.do.net and r2.do.net etc.
RollerNetSupport
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Post by RollerNetSupport »

Thanks for the suggestions. We are currently working on adding subdomain support to mail domains and we'll work on these next.
Technical Support support@rollernet.us
Roller Network LLC
RollerNetSupport
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Post by RollerNetSupport »

We've added bulk entry modes to the blacklist and whitelist filters.

https://acc.rollernet.us/help/mail/filter/blacklist.php
https://acc.rollernet.us/help/mail/filter/whitelist.php

These were easy to add since it's just changes in the account control center. The other requests will take some more time since they require back end modules.
Technical Support support@rollernet.us
Roller Network LLC
RollerNetSupport
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Post by RollerNetSupport »

We've made the following changes to the both the whitelist and blacklist:

* Bulk entry modes
* Host Name (DNS PTR) - Matches a host name (address->name) and its subdomains.
* Sender Domain Name w/Subdomains - Same as "Sender Domain Name" but includes subdomains.
* SpamAssassin and Antivirus support to the whitelist.

Having the blacklist check the "From" header is a good idea, but it'll take more work since the blacklist in its current form operates before the DATA phase of the message and thus there aren't any headers for it to look at. We'll need to add a blacklist module to the content phase.

Sharing blacklists is also something we'll look at - we need to consider cases like someone adding "ebay.com" to their shared blacklist, so it's not something we can rush into.
Technical Support support@rollernet.us
Roller Network LLC
wkuypers
Posts: 79
Joined: Mon Nov 28, 2005 4:34 am

Post by wkuypers »

Super ! Thanks a lot for the rapidty. Really appreciated the features.
wkuypers
Posts: 79
Joined: Mon Nov 28, 2005 4:34 am

Post by wkuypers »

To make things even better :
it is possible to introduce more than once a domain name in the blacklist. For example I added by mistake comp9.net several times.
This shouldn't be possible (also in bulk mode).

Another issue with the blacklist, is that the sort order is the latest entry is last in the list. It would be useful however to have it order alphabetically (or to be able to change the sort order).

Thanks
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