Mailspring is a new version of Nylas Mail maintained by one of the original authors. It's
a new C++ sync engine based on Mailcore2. It uses roughly half the RAM and CPU of Nylas Mail
and idles with almost zero "CPU Wakes", which translates to great battery life. It also has
an entirely revamped composer and other great new features.
Mailspring comes packed with powerful features like Unified Inbox, Snooze, Send Later, Mail
Rules, Templates and more. Mailspring Pro, which you can unlock with a monthly subscription,
adds even more features for people who send a ton of email: link tracking, read receipts,
mailbox analytics, contact and company profiles. All of these features run in the client -
Mailspring does not send your email credentials to the cloud.
Swap out openSUSE_Leap_15.5 for openSUSE_Leap_15.4 or openSUSE_Tumbleweed if you’re using a different version of openSUSE.
With the repository added, import its GPG key:
sudo zypper --gpg-auto-import-keys refresh
Finally, upgrade the package cache to include the new snappy repository:
sudo zypper dup --from snappy
Snap can now be installed with the following:
sudo zypper install snapd
You then need to either reboot, logout/login or source /etc/profile to have /snap/bin added to PATH.
Additionally, enable and start both the snapd and the snapd.apparmor services with the following commands: