[
  "discord",
  "gitter",
  "gmail",
  "google-calendar",
  "hangouts",
  "mattermost",
  "messenger",
  "msteams",
  "proton-mail",
  "slack",
  "skype",
  "telegram",
  "tweetdeck",
  "trello",
  "whatsapp",
  "wechat"
]