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If you believe someone's issue with sending email is related to the rate limit, please include the full headers when submitting the ticket to IT@tufts.edu so that the issue can be resolved more quickly.
Forwarding Email
Any emails redirected or forwarded via an OWA rule will count as sent email for the purpose of the rate limit. For example, someone forwards to a gmail account using email rules, if they RECIEVE over 1000 messages they will hit the limit and they will stop receiving email.
To avoid this issue with the rate limit, forwarding should be set up at the mailbox level via Tufts Tools.