Schedule and Throttle Mail Merge in Word
From this video, you will learn how to schedule and throttle email campaigns in Microsoft Word using Mail Merge Toolkit: https://www.mapilab.com/outlook/mail_...
Along with many other features, it allows control of the number of outgoing messages during a specified period. Email services have various sending limitations, which can block some messages, or mark it as SPAM, etc. Splitting a campaign into small batches and sending those with a delay helps to avoid triggering such filters.