Discover best Smime softwares, apps and websites.
Thunderbird is a free, open-source email client developed by the Mozilla Foundation, offering robust features for managing multiple email accounts, integrated chat, and RSS feeds. Known for its extensibility and focus on user privacy and security.
Kopano is a versatile open-source groupware suite offering email, calendaring, contacts, and online collaboration tools for businesses and organizations. It provides flexible deployment options, including on-premises and hosted solutions, with strong focus on data privacy and security.
Icedove is a robust and adaptable open-source email client forked from Mozilla Thunderbird, offering comprehensive email management, RSS feed aggregation, integrated chat, and extensive customization options through extensions.