When comparing Boxy vs eM Client, the Slant community recommends eM Client for most people. In the question“What are the best e-mail clients for macOS?” eM Client is ranked 13th while Boxy is ranked 22nd. The most important reason people chose eM Client is:
Such as sorting through categories, etc.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Native Google Inbox for Mac
Boxy is simply a wrapper around Google Inbox. People who are used to Inbox's web interface will feel right at home with Boxy.
Pro Surfaces important information from messages
If an email contains pictures, flight information, reservation at a restaurant, attachments, links, dates, phone numbers and other information that the application recognizes, it will surface that information in its main view. These items can be viewed and interacted with without having to open the message itself. It allows finding and taking action on the important email information quickly.
Pro Intelligent categorization
Inbox tries automatically bundling similar messages together. For example, Inbox will create bundles for travel information, receipts, promotions as well as group messages temporally. It enables also managing these bundles of messages together - they can all be swiped away together.
Pro Many useful options
Such as sorting through categories, etc.
Pro Free and paid version
It is free for 2 accounts and as long as you don't use it commercially. Paid version comes with support and can handle more than 2 accounts.
Pro Still actively developed
They've been developing and improving it consistently for years.
Pro Calendar inclusive
Pro Beautiful interface, customisable to your needs
Pro It's simple to add new accounts
Pro Includes Quick Text
eM Client seamlessly integrated the Quick Text extension that was available on Thunderbird. This makes it easy to quickly auto-insert dynamic text, based on many variables, saving time and the need to tediously repeat manual text replies.
Pro Chat included
eM Client includes integrated chat, so you don't need another application for chatting with your friends. All common chat services supported (Google chat, Jabber and others).
Pro The only email client which synchronizes Gmail contacts properly
Pro Doesn't replace your attachments with "winmail.dat" files
eM Client sends straight .pdf files for fax messages flawlessly.
Pro It doesn't store all emails on the disc
It saves space, unlike Thunderbird.
Pro It is still the best in this class
But only because it has no alternative.
Pro A perfect companion to your Gmail or other webmail you might have
It provides (almost) complete Gmail functionality (calendar, tasks, chat, contacts), while offering advantages of an application: offline use, more e-mail providers in one place, very good design, support, etc.
Pro Very fast
Cons
Con Only supports Gmail accounts
No exchange email support or importing of any other e-mail services mail.
Con Extremely slow opening emails
Con Some syncing errors with Hotmail
Happens from time to time.
Con Bloated
Huge size, high memory consumption, uses CEF (Chromium Embedded Framework).
Con Lifetime Upgrades are expensive
Con Account options are not shown under right click
Con Terrrible in handing unread emails
Sorting of unread emails is very useless when compared to other email clients.
Con Poor integration with Yahoo Mail
Integrations with a Yahoo Mail account doesn't always work well in eM Client.
Con Not many options to manage IMAP folders
For example, all emails from Gmail will unnecessary synchronize.
Con Interface is too simple
Many options are too hidden and it takes at least 3 clicks to set them up.
Con No conditional formatting
Con Only has one nice interface/skin
The other available skins has a 90s feel to them.