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What are the best cross-platform email clients?

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2 Options Considered

2 Options ConsideredPricePlatformsExchange Support
Mailspring
––
Mozilla Thunderbird
Linux, Mac, WindowsYes
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Mailspring

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Ben Gotow
Top Pro

CPU / battery efficient

•••
Mailspring uses a C++ sync engine designed to be as efficient as possible, so you can leave the app running and not see your laptop battery life drain away.
Kristaps
Ben Gotow
Top Pro

Unified inbox

•••
Using a single inbox for all of your email accounts helps you get more done in less time. Mailspring supports every major mail provider—Gmail, iCloud, Office 365, Outlook.com, Yahoo!, and IMAP/SMTP—so you have a single, streamlined command center for all your messages.
Ben Gotow
Top Pro

Read receipts and link tracking

•••
Activity tracking is built into Mailspring so you get notified as soon as contacts read your messages and can follow up appropriately.
Kristaps
Ben Gotow
Top Pro

Snoozing support

•••
You can swipe to archive / snooze messages and specify when you'd like them to resurface in your inbox.
Chloe Montanez
Thomas Singer
Top Con

No portable windows (.zip) bundle available

•••
Kristaps
Ben Gotow
Top Con

Pro subscription model

•••
To use some features, like contact profiles and link tracking more than a few times a month, you need to pay for a Pro subscription.
See 4 more Pros & ConsSee 4 more Pros & Cons

Mozilla Thunderbird

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Thomas Singer
Top Pro

Powerful filtering options

•••
Thomas Singer
Top Pro

Supports multiple accounts and identities

•••
SharpKayra
Top Pro

Free (as in freedom and beer)

•••
Thomas Singer
Top Pro

Available for Windows, Mac and Linux

•••
Thomas Singer
Top Pro

Portable version available

•••
Thomas Singer
Top Pro

Can be extended to be very restrictive

•••
E.g. show HTML messages only on demand.
Thomas Singer
Top Con

Quite sluggish

•••
Triggering commands usually is delayed for a noticeable moment.
Ben Gotow
Top Con

Interface is old-fashioned

•••
Thomas Singer
Top Con

Fetching mails often collides with compacting

•••
Especially if Thunderbird detects that a folder could be compressed and suggests to do that (while fetching fails), it often reports problems in doing this because the 2 tasks could not work on the same folder at the same time.
See 7 more Pros & ConsSee 7 more Pros & Cons
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Nylas Mail

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29 Community Recommendations

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SharpKayra
SharpKayra
Contributor for 2 months
1
Total 
Recs.
315
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Karma
Mozilla Thunderbird
2 months ago
On Linux, slow & lags.
Con
 Quite sluggish
Pro
 Available for Windows, Mac and Linux
Pro
 Powerful filtering options
Pro
 Supports multiple accounts and identities
Con
 Interface is old-fashioned
Pro
 Free (as in freedom and beer)
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