Maximum number of Blocked Senders addresses in Outlook Web App

In Outlook Web App (OWA), the maximum number of addresses allowed in the Blocked Senders list is 1,024. (OWA for Indiana University uses Exchange 2013.) You can add Blocked Sender addresses using the Manage Junk E-mail Lists option. If you exceed the size limit, you will receive the message:

"An error occurred processing your Junk E-mail list. You are over the size limit allowed at the server. Contact your server administrator."
OWA has the same functionality across major browsers in most cases. For help using OWA, with your Inbox displayed, click ? (the question mark) at the top right.

This is document apnl in the Knowledge Base.
Last modified on 2019-01-10 14:20:11.

Contact us

For help or to comment, email the UITS Support Center.