I'm Thunderbird user for years. It's the most user friendly and convenient e-mail, calendar, task and addressbook client I'v ever used among others as Outlook or any web client.
The function I appreciate most is easy setting for cryptographic signing and e-mail encryption.
Thank you! Please, continue with good job @Thunderbird: Free Your Inbox

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#Thunderbird #e-mail #addressbook #task #calendar #signing #encryption #ThankYou