SnappyMail vs RainLoop

🔌 = plugin
Feature SnappyMail 2.5.0 RainLoop 1.15
IMAP
SMTP
Sieve½ (own scripts only)
Responsive design½ (user-agent sniffing)
Dark mode
Gmagick/ImageMagick
Google FLoC disabled
ICU 4.6 domainnames
MySQL/MariaDB utf8mb4
Phar
Plugins CSS
Remove message colors
Set Sender
Sort messages by date/size/subject
Spam score visible
Syslog login errors
2FA🔌 (not yet)✔ (TOTP)
Change password🔌✔ + 🔌
Default Admin password❌ (random)✔ (12345)
DropBox
GMail
Internet Explorer
OAuth2
POP3
Sentry
X-Mailer header
jQuery
WYSIWYG (only SnappyMail supports plugins)
Squire
CKEditor🔌
Pell🔌 (not yet)
Quill🔌 (not yet)
Suneditor🔌 (not yet)
TinyMCE🔌 (not yet)
Trix🔌 (not yet)
many more🔌 (not yet)
Social:
Facebook
Google
Gravatar
Twitter
Size and compression:
Brotli
PHP Gzip
Login (no compression)490 KB2.13 MB
Login (compressed)*170 KB602 KB

* Login compressed output for SnappyMail is pre-compressed using Brotli, and RainLoop is based on Apache deflate.