Are you using FileMaker to send the email or do you need to paste this data into your email program?
No copy and paste is needed for the first option.
For the second, if you change to a layout based on the same table where this one column is the only filed present, copy all records will copy the column of data, with returns seperating each value, to the clip board. This can be scripted so that all you do is click a button and then you change applications and paste.
I need the second option (pasting from the database into my Mac Mail). I frequently also have to paste a list into reports done in QuarkXpress or Word. So a layout with just this field is required and I can copy that into another program, if I understand correctly. Scripts are beyond me at this time, but I hope to be able to learn that in the future.
Thank you for your help!