What does this mean (smtp relaying question)
 

"The SMTP relay service is provided to you as part of your email account. As such, you must activate the service when you establish your email account settings. Your email account includes 250 SMTP relays per mailbox. If you need more than 250 relays for your mailbox, additional relay packs (packs of 50) can be purchased through ...."

What do they mean by 250 relays per mailbox?
Only 250 outgoing mails? :helpme

250 outgoing mails

That sucks

Hahahaha

i'd imagine that's per month