Forum Discussion
Hybrid Mailbox Sending Limit
Dear all, I hope you're all having a good day. Today, I'd like to discuss the sending limit for Exchange hybrid mailboxes. Before we delve into the topic, let me explain my current infrastructur...
EXO is in principle not meant for bulk mailing to external recipients. You have three options:
1) Have Exchange on-prem (Hybrid) send directly to external recipients
2) Use multiple accounts when sending (authentication)
3) See if the app can leverage Azure Communication Services for bulk mail - see https://learn.microsoft.com/azure/communication-services/overview
While some things are "tolerated" at the moment, the recently announced HVE article provides pointers to where things are going, see https://techcommunity.microsoft.com/t5/exchange-team-blog/public-preview-high-volume-email-for-microsoft-365/bc-p/4104050