Two decent options, one on prem and the other fully hosted.

Tucows/OpenSRS has a fully hosted email offering that was built for ISPs to resell.  (They also have domain registration and some other ISP focused services.)

https://opensrs.com/services/hosted-email/

MagicMail is an email (including webmail) suite that you run on prem.  It is comparatively inexpensive but also fully supported.  It's built largely on qmail, but they replaced some of the components to deal with spam and virus filtering more efficiently.

https://www.magicmail.com/

I have direct experience with both and have used them both for ISPs specifically.  

Scott Helms



On Tue, Jul 6, 2021 at 10:44 AM Steve Saner <ssaner@ideatek.com> wrote:
I hope this isn't too far off topic for this list.

We acquired a small ISP a couple years ago that has its roots in the "local ISPs" of the 90s. This ISP is still hosting email and web services for customers both on company domains as well as customer domains. There is some decent revenue coming from these services, but cost of maintenance is becoming a challenge. We are looking at migrating to another platform or completely discontinuing those services.

I'm wondering if others here have gone through that process and have any advice as to how to go about it. 

--

Steve Saner | Senior Network Engineer

ideatek INTERNET FREEDOM FOR ALL

Cell: 620-860-9433 | 111 Old Mill Lane, Buhler, KS 67522 | ideatek.com

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