Spam Filter ISP Forums : IPv6 Support https://www.logsat.com/spamfilter/forums/ Mon, 13 Apr 2026 11:04:01 +0000 Wed, 27 Aug 2025 05:44:20 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.04 360 https://www.logsat.com/spamfilter/forums/RSS_post_feed.asp?TID=6990 <![CDATA[Spam Filter ISP Forums]]> https://www.logsat.com/spamfilter/forums/forum_images/web_wiz_forums.png https://www.logsat.com/spamfilter/forums/ <![CDATA[IPv6 Support : Hi Bleuszler,While the underlying...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14975&title=ipv6-support#14975 Author: ik8sqi
Subject: 6990
Posted: 27 August 2025 at 5:44am

Hi Bleuszler,

While the underlying TCP components we implemented in the SMTP engine back more than a decade ago did support IPv6, we encountered a lot of issues in trying to determine if the sender’s IPv6 address was “clean” or not. This meant that if SpamFilter received connections from IPv6 addresses it would have not been able to stop the majority of the spam.

We thus unfortunately abandoned the idea of supporting it.

]]> Wed, 27 Aug 2025 05:44:20 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14975&title=ipv6-support#14975 <![CDATA[IPv6 Support : As loathe as I am to resurrect...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14974&title=ipv6-support#14974 Author: Bleuszler
Subject: 6990
Posted: 26 August 2025 at 5:29pm

As loathe as I am to resurrect an ~14yr old thread, this seems to be the most recent post relating to this subject (IPv6).

The LogSat admin's post here says that the new (at that time) engine would add IPv6 support, and yet, here, in 2025, I don't see any indication that this exists/has been done.

I'm in the process of implementing a new PI-/40 IPv6 rollout on my network, but, as far as I can tell, cannot use SpamFilter as my SMTP-Edge server in that function. I'd love to keep using it (been on it for over 22 years now!) but if it can't see the network, I won't be able to use it... Unhappy

(I have MS Exchange 2019, and will have to roll it out in an Edge role if I'm forced down that road, but, honestly, I'd rather keep the package that's been quietly doing an awesome job for over 20 years!]]> Tue, 26 Aug 2025 17:29:17 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14974&title=ipv6-support#14974 <![CDATA[IPv6 Support : Thanks for the update Roberto,...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14270&title=ipv6-support#14270 Author: yapadu
Subject: 6990
Posted: 09 November 2011 at 9:00pm

Thanks for the update Roberto, glad to see some updates coming.  Unfortunately for us nothing too exciting as we don't use the GUI.  TLS is good though...
]]> Wed, 09 Nov 2011 21:00:00 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14270&title=ipv6-support#14270 <![CDATA[IPv6 Support : The main focus is on a brand new...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14269&title=ipv6-support#14269 Author: LogSat
Subject: 6990
Posted: 08 November 2011 at 10:17pm

The main focus is on a brand new SMTP engine based on fibers rather than threads. While this is a major redesign for us, it will not have many "visible" features to admins, even though it will add support for things like IPv6 and TLS (in addition to the existing SSL). This new engine is currently in alpha and we're testing it internally only for now. The second major upgrade (this one very visible) will be a new GUI for SpamFilter, most likely web-based even though we're developing a parallel client-server GUI as well to see which one will work best.

The GUI redesign is hitting many delays, so we are likely going to release a major update with the new SMTP engine within a month or two before including the GUI.

Aliases is unfortunately not a new feature, at least for now, as we're trying to get this new major update out as it's long overdue.
]]> Tue, 08 Nov 2011 22:17:27 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14269&title=ipv6-support#14269 <![CDATA[IPv6 Support : Roberto,Are you going to be leaking...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14268&title=ipv6-support#14268 Author: yapadu
Subject: 6990
Posted: 07 November 2011 at 7:47pm

Roberto,

Are you going to be leaking info on any of the new features?  My #1 request for years has been the ability to some type of alias.

We anger so many customers who have 1 mailbox and 25 aliases on their server.  We need to charge them for 26 addresses as we do not have any way to funnel the 26 addresses into their 1 mailbox.

We run the enterprise version, not having the ability to do enterprise features is killing us.

Others on here have said trust your customer, but we don't.  Do some math:

1 mailbox = $1.00 per month
500 aliases = free (on trust model)

Revenue lost $500 per month!  The customer can run their entire system off 1 address in spamfilter.
]]> Mon, 07 Nov 2011 19:47:56 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14268&title=ipv6-support#14268 <![CDATA[IPv6 Support : Luis,The current version of SpamFilter...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14267&title=ipv6-support#14267 Author: LogSat
Subject: 6990
Posted: 04 November 2011 at 7:36pm

Luis,

The current version of SpamFilter does not support IPv6, but the next major upgrade (due within a few months), most likely will.
]]> Fri, 04 Nov 2011 19:36:55 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14267&title=ipv6-support#14267 <![CDATA[IPv6 Support : Hello, Does SpamFilter support...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14266&title=ipv6-support#14266 Author: Luis
Subject: 6990
Posted: 03 November 2011 at 1:40pm

Hello,
 
Does SpamFilter support IPv6?   If so, to what extent?
 
I'm specifically wondering if SpamFilter can accept e-mail via IPv6, scan it, then forward/relay it to an internal Exchange server running on IPv4?
 
If there currently is not or limited IPv6 support, is it on the roadmap?   And, if so, ETA or version for full IPv6 support?
 
Thank you.
 
Luis...
 
]]> Thu, 03 Nov 2011 13:40:13 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6990&PID=14266&title=ipv6-support#14266