Free And Open Source E-Mail Applications

geary is the best for me, the downside is not on geary side but on Gnome Online Account, which having trouble logging my MS Exchange account (which works on Evolution)

I mostly receive mails from eBay, Amazon, message boards and rarely friends.
So technically I could indeed use my provider's webmail UI which is slick and easy to use as well but I don't want to.
I actually prefer having a dedicated program for mails on my machines so I use K-Mail on Linux and FairEMail on Android.

Posteo is the best choice for email yeah its not free but its the best so it worths

Gnome application that has menu and does not try to hide advanced settings? That sounds very weird.
I basically stopped using Thunderbird when our company switched to exchange server. There's likely a way how to access it via IMAP, but even then ... I used eM client which has free (not open source) version at least for Windows and I didn't like thunderbird when they dropped support for old extensions. What I didn't liked is that it did not add any functionality since Netscape Communicator, they redesigned GUI to worse, search functionality was always confusing. Once I bought Postbox which is based on Thunderbird and allowed functionality such as displaying attachment, filtering them by type or sender and so on ... while Thunderbird showed every single email with attached vcard as email with attachment. From some people it was every single email and attachments in coversation were impossible to find. There were many little bugs and nuisances like that and whole project seemed basically dead. Thinking about it, I haven't touched it for maybe 8 years, hopefully it evolved somehow.

Electron-mail FTW!

Finally

Thunderbird user here and it works very well for me. I have BlueMail installed on Linux but I don't use it. I also have BlueMail installed on Android and I installed it mostly so I could assist friends who I recommended BlueMail to. :) I use Outlook for work and despise it. Two things I like and use a LOT in Thunderbird are: 1) message filters (I have HUNDREDS defined); 2) Junk filtering (which is quite effective, but not perfect, once trained).

i kind of feel Kmail has been abandoned and its a shame.

gnus all the way.

Mailspring i a good choice to

I don't like to rely on any local program, it is more efficient to configure than a single online mail to check other servers (POP3/SMTP) and with rules and tags to have everything organized. That gives freedom to have all my accounts and emails from anywhere, without the need for extra settings when switching devices or doing a system reinstallation.

what about MailSpring

I use Geary. It looks good, fits in well with Gnome, and the interface is simple and intuitive. I don't really need advanced features, and I prefer to use stand-alone calendars apps, so the lack of a built-in calendar is something I like.

Please never stop making videos 🤩

linux user look about email apps and windows user need upgrade gpu for gaming 😂

Which of these clients have security features, like not loading external resources in mails? I think Thunderbird does

ProtonMail has e2ee

I've tried to switch to Thunderbird and Geary, but I always return to Evolution. I just like it so much. I don't find it ugly and I don't try to measure it up with some pre-made notions of what is a beautiful program these days. For me it works beautifully and it organizes and labels my emails beautifully with nice labeling options.

I kinda have love-hate relationship with Outlook. The UI is great but not for UX, e.g. old Outlook can set where you want to save offline copy during wizard setup. Outlook 2016 onward only asks e-mail and password. Easy for normal user but bit tedious for advanced users. Backup and restore also a problem for Outlook. Not to mention corrupt for no reason.

Have to use Thunderbird and it's great so far although requires 3rd party for Exchange.

I have question. If you support open source apps, like thunderbird, did you ever click a donate button and donate for them some money? If no, it that mean you just use open source because is free and you don't want to pay for them. And this is not support for open source developer. This is my opinion.