I've never really used ISPconfig however just looking at the website it looks like SquirrelMail is an external plugin for it, not something that's built-in. Even the link on the add-ons page is broken for it.

On Sun, Jan 12, 2025, at 1:39 PM, techlists@phpcoderusa.com wrote:
Thanks Ryan,

I wonder why ISPConfig is using SquirrelMail?  I recall being very fond 
of SquirrelMail .  Not sure why.  I need to do some discovery so I can 
figure out why.

Thanks!!
Keith


< On 2025-01-12 13:31, Ryan Petris wrote:
> It looks like it got updated in 2021 for PHP 8 support, but it's a
> "snapshot" release; the latest stable is still from 2011, which is
> still super old especially with web software.

> There are plenty of other newer, better, and maintained webmail
> software, even if you're looking for something you can just chuck onto
> a PHP host. Roundcube [1], for instance, is a very capable modern
> webmail client that just needs to be plopped onto a PHP host, with the
> latest release being in September, 4 months ago.

> On Sun, Jan 12, 2025, at 1:01 PM, techlists@phpcoderusa.com wrote:

>> On 2025-01-12 07:50, Ryan Petris wrote:
>> 
>>> The last stable release of SquirrelMail was July 12, 2011
>> according to
>> 
>>> wikipedia, which was nearly 14 years ago. I hope you're not still
>> 
>>> using it or considering using it.
>> 
>>> 
>> 
>> Ryan,
>> 
>> Interesting point.  ChatGPT say it is no longer supported.  The
>> website
>> 
>> shows something is taking place.  Says it is compatible with PHP
>> 8.3....
>> 
>> ISPConfig is using it.
>> 
>> I think this is reason to dig a bit deeper.
>> 
>> Thanks!!
>> 
>> Keith
>> 
>>> On Sun, Jan 12, 2025, at 7:45 AM, Keith Smith via PLUG-discuss
>> wrote:
>> 
>>> 
>> 
>>>> Hi,
>> 
>>>> 
>> 
>>>> Around 2006 or 2007 I had a business website hosted at GoDaddy.
>> I
>> 
>>>> used
>> 
>>>> 
>> 
>>>> the cheapest web hosting. I think it was around $3.00/mo.  I
>> 
>>>> exclusively
>> 
>>>> 
>> 
>>>> used the GoDaddy webmail which I thought was really good.
>> 
>>>> 
>> 
>>>> AI tells me GoDaddy was using SquirrelMail at the time,  I think
>> it
>> 
>>>> was
>> 
>>>> 
>> 
>>>> highly modified by GoDaddy.
>> 
>>>> 
>> 
>>>> Does anyone know if GoDaddy was using SquirrelMail 18-20 years
>> ago?
>> 
>>>> 
>> 
>>>> Thanks!!
>> 
>>>> 
>> 
>>>> Keith
>> 
>>>> 
>> 
>>>> ---------------------------------------------------
>> 
>>>> 
>> 
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>> 
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>> 
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>> 
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>> 
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> Links:
> ------
> [1] https://roundcube.net/