I use Seamonkey as an email client, and one of the features I like most is that it can delete an attachment without deleting the message. This is great when your running out of space and need to clear up large messages, but don't want to lose the hundreds of bytes of useful text, just so that you can delete the multi-megabyte attachments.
I presume Thunderbird has the same feature, because they share a codebase.
I use Seamonkey as an email client, and one of the features I like most is that it can delete an attachment without deleting the message. This is great when your running out of space and need to clear up large messages, but don't want to lose the hundreds of bytes of useful text, just so that you can delete the multi-megabyte attachments.
I presume Thunderbird has the same feature, because they share a codebase.