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Sign mails using Thunderbird or SeaMonkey

Note: Some small differences might appear between versions of ThunderBird and Seamonkeys.
  • Run ThunderBird or SeaMonkey
  • Menu Mail and Newsgroup account settings
  • Select Security
  • In Digital Signing click Select
  • Select the User Certificate you want to use to sign your outgoing emails and click Ok
  • Select No in the following warning popup
  • Check Digitally Sign messages (by default)
  • Click OK
  • Created: 3/10/2020
    Last reviewed: 5/2/2022
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