Sendmail
Postfix
Exim
sSMTP
KumoMTA
MailerQ
OpenSMTPD
Mail-in-a-box
Roundcube
Rainloop
Zimbra
Mailpile
Horde
Microsoft Outlook
Squirrelmail
iRedMail
Roundcube is recommended for small to medium-sized organizations, educational institutions, and individuals looking for a versatile and user-friendly webmail client. It is especially suitable for those who require an open-source solution that can be tailored to specific needs through plugins and custom development.
Based on our record, Roundcube seems to be a lot more popular than Sendmail. While we know about 17 links to Roundcube, we've tracked only 1 mention of Sendmail. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
We are using sendmail and Exchange online with to different identies. We are experience problem that we want to receive Teams invitation to our @ sendmail.com address, when I forward teams invitation fromexchange online identite to "sendemail" identetie we are getting error. Source: over 5 years ago
I’m also a happy Migadu customer, and I have never had to interact with their support. I use it for most of my domains, except for a few that are work-related. For Webmail, I have been meaning to try https://roundcube.net You can try it out at https://www.pikapods.com/apps#email to see if this works for you. - Source: Hacker News / about 1 year ago
I have tried several, and liked none of them. I'm currently on Geary, but it's lacking in functionality, and it has things like search results being a bit different upon each of my searches. Starred messages cannot be shown on top. Eyeroll. I think Evolution and Thunderbird are the top contenders, and of the self-hosted ones, Roundcube. https://wiki.gnome.org/Apps/Geary https://roundcube.net/. - Source: Hacker News / over 2 years ago
You could try a standalone email client like Mozilla's Thunderbird, or if you're experienced running a web server, you could check out something like Roundcube. I suppose you could even run it locally if you're familiar with PHP and/or Docker. Source: over 3 years ago
What I really miss is a "web companion" for Thunderbird, basically something like https://roundcube.net/ or https://www.horde.org/apps/webmail, but a bit more powerful and with better UX. I'd like to use a Google Addressbook within such app, for example (there is a completely outdated plug-in for RoundCube). Another important thing would be powerful and fast search. - Source: Hacker News / over 3 years ago
Alternatively if you want to keep what you have I wouldn't recommend using the SoGO even though it's the nicest and most modern option. Mainly because it's a full groupware client and will require a lot of configuration. Instead using Roundcube is probably your best option. Source: over 3 years ago
Postfix - Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.
Rainloop - RainLoop is a web based email client.
Exim - Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Zimbra - Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.
sSMTP - sSMTP is a simple MTA to deliver mail from a computer to a mail server.
Mailpile - Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.