[BlueOnyx:27105] Re: Suggestions to fix AV-SPAM fail

[Barry Mishkind]

Thanks for the information.  It seems that the upgrade will mean
         1.upgrading BX to 5210 or 11
         2. building a virtual "box" (is that the right word) to run Mailman,
                 which will need to be totally rebuilt whether we 
stay at 2.x or go to 3.x
         3. implementing PostFix.

I suspect that will not be a weekend project!

b

At 06:40 AM 7/18/2024, Chris Gebhardt - VIRTBIZ Internet via Blueonyx wrote:

>Hi Barry,
>
>On 7/17/2024 12:46 PM, Barry Mishkind via Blueonyx wrote:
>>Clearly, we are making plans for the upgrade from 5109r.
>>(Our issue is Mailman... which we have a solution in process)
>
>Updating will be of great benefit.
>
>>The problem is sending email via sendmail.
>
>We had been seeing a lot of issues with Sendmail as well.   The 
>issue becomes that Sendmail gets flooded with requests  / invalid 
>connections from servers with bad intentions and just sort of locks 
>up.   Like a denial-of-service.   It doesn't recover very gracefully.
>
>The best fix has been to move to Postfix as the MTA.    We were 
>loathe to do so initially as we've got 20+ years under our belt 
>understanding and managing Sendmail but once we did, the locking up 
>issues have disappeared completely.
>
>I understand that's not an "immediate" fix for you, but is a goal 
>worth working towards.
>
>--
>Chris Gebhardt
>VIRTBIZ Internet Services
>Access, Web Hosting, Colocation, Dedicated
>www.virtbiz.com | toll-free (866) 4 VIRTBIZ
>
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  - -

Barry Mishkind - Tucson, AZ - 520-296-3797