Postbox

Postbox is constantly eating 20% of the CPU on a M1 Max even when idleing in the background. My support inquiry never got an answer. After years of happy usage this is a show stopper for me. I gave up hoping for an Apple Silicon version and can not recommend this apparently abandoned ship.

It is very difficult to understand this company's policy: what is the point of refusing to say whether a native ARM version of PostBox will ever be written? Otherwise, it is a nice programme, with useful UI. The search facilities should be improved and made easier to use.

I adopted Postbox for its cross-platform consistency while working in Windows, Linux, and Mac OS, and I like the way it works. Now that I am working solely on a Silicon Macbook, I'm concerned about the future. Having bought a lifetime license, I realize the company has no incentive to update the macOS app, as it won't bring them any more revenue from users like me. Given that the app seems to be based on Thunderbird (a code base that is a little long in the tooth), updating for Silicon is probably going to mean a complete rewrite from scratch. I would support a fundraiser for such an update and a subscription license for a fresh version of Postbox. The benefits of doing this would be felt by Windows and Linux users as well, of course. But if that revolution doesn't happen, I'm afraid the future of Postbox will be to just run in buggy and inefficient emulation over the next few OS releases, until Rosetta is phased out, when it will no longer run at all. That would be a shame, because I haven't seen any other email client (on any platform) that I like as well as this one.

DO NOT BUY EVEN IF YOU HAVE AN INTEL MAC! One day you'll have an Apple Silicon Mac, and then the problems starts. It's not worth the money anymore without an native client. It's laggy, crashes a lot, eats lots of GB of ram when running through Rosetta. Just head over to Thunderbird, its basically the same without the the nice UI BUT with calendar and Addons or spend the money to another developer who has released a native app.

The company refuses to say if it is developing a native ARM version for what is effectively Apple's complete Mac product line. Postbox has no native version for any Mac currently on sale so we have to use an Intel version in emulation mode which uses 5x the RAM of other mail clients. I have repeated emailed Postbox Inc. and all they say is that they will not discuss their development roadmap. Poor show Postbox.

Brilliant design. I hope they continue to refine Postbox to reach its full potential.

STILL no Apple Silicon version. The company is really dragging its heels over this - refusing even to comment on the issue. I don't understand the problem. eMClient has has an ARM version for ages, as have pretty much all the other Mac email clients - including Thunderbird on which Postbox is based. I can only assume the company isn't doing very well given they are effectively not developing for the current version of macOS.

Provides useful features that Apple Mail doesn’t. The main reason I switched is because Mail’s search function was proving to be utterly useless – Postbox’s actually works. Postbox also provides some folders you’d expect to exist, like a junk folder that shows your junk from all accounts – Mail removed this and now you have to creat a smart folder for it. Its file attachments are also much better, showing them all at the bottom or allowing an image to be placed inline or as an attachment. I will stick with Postbox but there are several annoyances I have come across so far: The new email alert doesn’t provide any functions e.g. to delete an email. Doesn't support some standard macOS features you’d expect: keyboard shortcuts can’t be changed (they show up as changed in the menus but don’t work). The Control-T shortcut (swap two characters around) doesn’t work (though other things do, e.g. I have a service to convert to capitals with Cmd-Shift-U) and alt-arrow down/up moves line by line, not paragraph by paragraph. When you paste in a screenshot, it’s massive and impossible to get it the correct size without it going blurry. If you’re sending an email to a group (as created in the Contacts app), you can’t see who is in the group nor expand it to remove an address. The print settings are good but there is no preview.

A lot more flexible than other mail clients for power users with all sorts of inboxes such as IMAP, Maildir, etc. Compared to Thunderbird, has great keyboard shortcuts (e.g., to quickly move to a folder) that work a bit like Gmail's.

A good replacement for Apple Mail. Faster, more features without needing to install plug-ins.

Globally a very good emailer for mac. The only which can be compared to the late Eudora. The global interface is friendly. However, bug fixing is deficient. Filters do not apply consecutively. Thousand of messages sometimes get duplicated, a real pain.

Great, enjoying all features already, only three hours after buying it.

Can't connect to my Synology Diskstation. The error from the wizard messages not helpful. Why can't I just manually set up the account without the useless wizard?

I used to love Postbox, but since getting a new Macbook Pro with the Apple silicon the app crashes ALOT. C'mon guys! Get an update out there to address this issue or it'll soon be time to look for another email app.

i really like postbox, but I hate that they don't have a native arm-version for the m1-macs. Because of that the whole app is really slow on the m1-macs, which shouldn't be the case. I really hope that they release a native m1-version in the nearest future.

I simply love Postbox. It's got most of the things I need and, by avoiding the temptation to do everything what it does it does it very well. The interface is clean and intuitive but behind it is a serious multithreaded message processing system which is designed for the task. I know there are jazzier email clients out there but at the end I always come back to Postbox.

I love Postbox but is is so frustrating that the company haven't released an Apple Silicon version which will run natively on pretty much the whole new range of Apple computers. Thunderbird, on which Postbox is based, has been available in an Apple Silicon version for some time. All Postbox will say to me is that they never comment of future developments. To those who say 'doesn't it run under emulation mode then?' the answer is 'yes' but it uses more memory than Photoshop and the argument that it runs OK so that's all that matters doesn't wash. It's like a company releasing just a Windows version of an app and telling its Mac customers 'No problem, it will run under Wine'. Would you be happy with that?. It has been a year since Apple announced its ARM intentions and made available to developers a Mac Mini containing Apple Silicon. Surely enough time when all other developers have managed to transition and release Universal versions for macOS.

The reason for switching to PostBox was that Apple's email app doesn't let me choose when a message will be marked as "read". Since then, I've ben using PostBox on all my Mac's since V4 and I love it. I maintain several e-mail accounts for both of my companies and everything works like a breeze. And the Search function is superb and allows me to find archived messages quickly, very essential for dealing with customer-support e-mails. I upgraded very quickly to lifetime license.

Best email app I've eved used since 1990s, period.

I have just come to the end of my 4-week trial and have decided to switch my mail client. Its better than MacMail and I think Outlook (my current email client) is travelling in the wrong direction. Correctly configuring a complex Exchange-Server account took a little effort but now its functioning very well. I find Postbox very easy to use. It has a lot of very useful features although I still have some way to go before calling myself a power user - I particularly like the search features. And its excellent value for money ... So why only 4 stars? Well there is always room for improvement so almost nobody gets 5 stars. Moving conversations out of inbox/sent mail to another mailbox (rather than archive) could be easier. As a trivial niggle, changing tag colours is needlessly difficult as it is unclear which colour is currently in use.