When using webmail, you can send a maximum of 350 emails every 24 hours.
When using POP & IMAP, you can send a maximum of 2000 emails every 24 hours.
Each recipient of an email counts as one email sent. Sending one email to 10 recipients is the same as sending 10 emails each with a single recipient.
Newer accounts may be subject to more restrictive sending limits during the first month of service.
If you need to send an email newsletter to a large number of subscribers, we recommend that you sign up for MailChimp.