Guild Wars 2

I’m trying to send few items to a friend, but after one mail, message pops up that my message was blocked due to excessive messaging?
Okay, you killed gold spamers, but seriously, Mail system is useless with such limitations.
Countless were encounters when I tried to send food buff to party members in dungeon but with no luck due to this severe limitation.

Arenanet, can you please ease up on mail sending limitations, and allow at least 4 mails to be sent within 5 minutes period?

Just send all the items on one Mail?

Can I send one mail to multiple persons? I don’t think so…
Also, I often send more than 5 items…