The Problem
Thunderbird has this feature where when you attempt to send an email with the keywords “attach”, “attaching”, etc. AND you do not have an attachment on the email, a popup will display that says “Did you mean to attach something?” and gives you the option to go back and attach something or send anyway.
I would like this feature in Mailspring because Goodness knows how many emails I’ve sent where I say I attached something but then forgot to send the attachment.