Top 15 Self-hosted open-source free web-based email clients

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

SquirrelMail is a standards-based webmail package written in PHP.

open-source

Is there a way to receive emails on old computers? about almost 2 years ago

That would not be too hard and only requires a few lines of code to create a TLS proxy. An alternative would be a webmail system if you have a web browser on your old computer. Squirrel mail is extremely basic and is likely going to work in old browsers as long as they support framesets.

Web-based IMAP email client

Thunderbird 115 Supernova Preview: The New Folder Pane about about 1 month 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 I'd like to use a Google Addressbook within such app, for example (there is a completely outdated plug-in for RoundCube).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.

SOGo is groupware server with a focus on scalability and open standards.

Cuttlefish Design is a graphic design and website design studio based in Temora in the Riverina region of NSW.

RainLoop is a web based email client.

This hasn't been added to SaaSHub yet

Horde Groupware is a free, enterprise ready, browser based collaboration suite.

All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail.

Building a Mail User Agent (not server) about 8 months ago:

Maybe you are looking for something like Cypht?

Open Source WebMail Lite is a free community edition of full-featured WebMail Pro server applicatio...

End-to-end email testing made easy

Filter & sort magical layouts

How the heck does this work? about 3 days ago:

I was also a big fan of isotope library back in the day.

Fiji: A batteries-included distribution of ImageJ.

Unable to open mvd2 files on Windows Computer about 11 months ago

If you are using the FIJI distribution of ImageJ (https://fiji.sc), then you should be able to drag the .mvd2 file onto the FIJI toolbar, and it will open using the Bioformats Importer. You need to have the .mvd2 file and the Data folder that is associated with it in the same folder. If you don't have that data directory, the .mvd2 file is useless AFAIK.

This hasn't been added to SaaSHub yet

This hasn't been added to SaaSHub yet