@Crissy I have 2 products that let you use Trello as a Gmail client:
So, for example in your scenario I assume you have a bunch of files that you have produced and need to send to an external client. In that case you would have all your files on the card, then post a comment:
@to Client Name email@example.com
Please find all files attached.
This can be posted from any device (mobile or desktop apps) and will show up in Gmail sent items. Then if/when the client replies, their reply will go to the same card.
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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