Destination field don't validates mail addresses

[damianmora]

When composing messages, you can add one valid destination address and a lot of words without sense in the destination field, for example:

validuser@…, hello world this is an error

Roundcube let's you send it as a valid set of destination addresses, but should not let you send it and may need to show an error message or something like that.

[damianmora]

Error on destination field when composing messages

[seansan]

A patch to validate e-mail adresses is somewhere TB found in "later"

[damianmora]

Replying to thomasb: Sorry for my ignorance where can I find the patch, what does somewhere TB found in "later" means?

[seansan]

Closing as dupe of (#1339493)

See #1484293 for the "later" ticket