When I import my vCard contacts that I exported from Roundcube into Thunderbird on my ubuntu machine, it only imports one e-mail address, even though the vCards contain multiple ones like this:
...
EMAIL;TYPE=INTERNET;TYPE=HOME:asdf@example.com
EMAIL;TYPE=INTERNET;TYPE=WORK:dfgh@example.com
...
As far as I know, this is a legal format for vCards and it worked for me in the past (with different applications that is) as well, which confuses me.
I would be happy, if someone can clear this up for me.