Having looked at it again today after about 8 years:
* The onboarding experience is horrible; tries to sell me a gandi email account, then the setup wizard fails with an opaque error. Had to abort and configure manually.
* Setting a reasonable font-size on Retina requires a 3rd party plugin and results in the GUI getting garbled bad; overlapping items, truncated labels, unusable dialogs etc. Sorry but 12px is not a reasonable font-size in 2015.
* The default conversation view seems to be some kind of in-joke, it only shows the first few hundred chars of each message. A semi-reasonable conversation view can be bolted on with another 3rd party plugin but it feels rough (flickering redraws, ugh).
* Forwarding multiple messages inline is still not possible.
* Search has improved a lot.
* Fully disabling HTML mail is still an exercise in frustration.
* A whole bunch of "wtf" was enabled by default (Silverlight plugin, Flash plugin)
* During setup it tried to connect to about 8 different domains (mozilla.org, CDNs, whatever other crap), none of which was my mailserver. It should not do that.
All that said. It's still one of the best (if not the best) GUI mail clients available. That's how bad the competition is...
> Setting a reasonable font-size on Retina requires a 3rd party plugin...
Thunderbird can handle high DPIs natively, at least on Linux. Hopefully OS X is similar. All fonts and UI elements are scaled up. Go to Edit > Preferences > Advanced > Config editor. Set layout.css.devPixelsPerPx to 2, or whatever looks good to you. It's the same procedure as Firefox.
So, a day later I'm back to Postbox now. Here's what broke it for me this time. It's hard to believe but these things are indeed still unfixed:
* The message list can not scroll to bottom. Neither on startup, nor on arrival of new messages. That bug[1] is open since 2010(!).
* The unread count and new message notification can not be disabled for specific IMAP-folders. Since my spam folder is a regular IMAP-folder (managed by spam assassin) Thunderbird insists on notifying me about every new Spam mail I get. Uhm, no thanks.
This is exactly my experience with thunderbird as well. I'm using claws-mail at this moment. The only thing to complain is, fetch mail in claws-mail is slower than thunderbird
Doubtful. If the parent poster is worried about privacy and security, he wants to configure it so as to always read emails as plain text without ever loading images.
* The onboarding experience is horrible; tries to sell me a gandi email account, then the setup wizard fails with an opaque error. Had to abort and configure manually.
* Setting a reasonable font-size on Retina requires a 3rd party plugin and results in the GUI getting garbled bad; overlapping items, truncated labels, unusable dialogs etc. Sorry but 12px is not a reasonable font-size in 2015.
* The default conversation view seems to be some kind of in-joke, it only shows the first few hundred chars of each message. A semi-reasonable conversation view can be bolted on with another 3rd party plugin but it feels rough (flickering redraws, ugh).
* Forwarding multiple messages inline is still not possible.
* Search has improved a lot.
* Fully disabling HTML mail is still an exercise in frustration.
* A whole bunch of "wtf" was enabled by default (Silverlight plugin, Flash plugin)
* During setup it tried to connect to about 8 different domains (mozilla.org, CDNs, whatever other crap), none of which was my mailserver. It should not do that.
All that said. It's still one of the best (if not the best) GUI mail clients available. That's how bad the competition is...