Bulk Email - Mail merge in Word

Occasional Contributor



We have just started to occasionally do mail merges to bulk emails. Each document contains custom information for the customer. These are not marketing email. Typically a run will be between 100 and 400 emails to 100-400 recipients (1 email to 1 recipient).  As we migrate into Office365 is there a way to ensure we don't trip over the rate limiter?


Does Word just fire off emails as fast as it can or does it work with EOL and send a 2 per second/30 per minute?




1 Reply

I would advise against sending such messages through O365 - even if you don't hit any rate limits, the user or the entire tenant might be flagged, causing you issues. Where possible, try to use any of the third-party tools that specialize in mass mailings, for the numbers you are discussing you should be able to find enough free options.