Transactional & SMTP
How to Send Bulk Email from Outlook (Limits + a Better Way)
Outlook and Microsoft 365 cap sending at roughly 300 to 5,000 recipients a day depending on plan, with about 500 per message. The full Word mail merge walkthrough, why Exchange throttles bulk senders, the compliance gaps around unsubscribes, and when a dedicated bulk email sender is the right move.
Aug 27, 20267 min read