Apple Mail
Apple Mail lets you drag single messages to BigBusiness and drop on the Docs folder. This attaches them to any entry in BigBusiness so you or others can open, read, reply.
On macOS this requires your permission for BigBusiness to control your Apple Mail. Please click Allow on the dialog pictured. This pops up the first time you drag email.
If you don't see the Docs folder on each window in BigBusiness check your MyPrefs.
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