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Outlook can send a personalized mass email using Word’s mail-merge feature, which works well for short lists. This guide walks through the steps, the limits to watch for, and when a dedicated tool is the better option.
How do you send a mass email in Outlook?
Outlook itself has no bulk-email feature, but it pairs with Microsoft Word’s mail merge. You write the message in Word, connect a contact list from Excel, merge the fields, and send each person their own individual copy through Outlook. It is the standard way to send a personalized mass email from a Windows PC without extra software.
What are the steps for Outlook mail merge?
The process lives in Word, not Outlook, and finishes by handing the messages to Outlook to send.
- In Word, open Mailings → Start Mail Merge → E-mail Messages.
- Select Recipients → Use an Existing List and choose your Excel file.
- Insert merge fields (such as first name) into the message.
- Finish & Merge → Send E-mail Messages; Outlook sends each one individually.
What are the limits of sending mass email in Outlook?
Mail merge in Outlook has no built-in open or click tracking, no automatic unsubscribe handling, and no scheduling. It is also bound by your mail provider’s daily sending limit, and large merges can be slow or get throttled. For occasional short lists it is fine; for regular campaigns it quickly becomes limiting.
How do you avoid Outlook mass emails going to spam?
Send only to contacts who opted in, keep your list clean, authenticate your sending domain with SPF, DKIM and DMARC, and include a clear unsubscribe option. A misleading subject line or a purchased list is the fastest way into the spam folder. See is bulk email legal and how to stay out of spam for the full checklist.
Is there an easier alternative to Outlook mail merge?
Yes. Mass Mailing News is purpose-built for this: import your list from Excel, personalize every message with mail-merge, send through your own SMTP, and get open and click tracking plus automatic opt-out removal — none of which Outlook mail merge offers. It runs on the same Windows PC you already use.
Download the free edition to try it, or compare the editions to see which fits your list size.
Frequently Asked Questions
Does Outlook have a mass email feature?
Not on its own. Outlook uses Microsoft Word's mail merge to send a personalized message to a list, delivering one individual email per recipient.
Can I do an Outlook mail merge from Excel?
Yes. Word's mail merge reads your recipients and merge fields from an Excel file, then hands each message to Outlook to send.
Does Outlook mail merge track opens?
No. Outlook mail merge has no open or click tracking, no scheduling, and no automatic unsubscribe handling.
How many emails can Outlook send per day?
It is bound by your mail provider's limit — a few thousand recipients a day on Microsoft 365, and lower on consumer accounts.
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Sending the same email to many people is easy to get wrong. Put everyone in the To or CC field and you expose every address; use BCC and you lose personalization. The right way is mail-merge, which sends each person their own individual copy. How do you send an email to multiple recipients individually? Use
Gmail is perfectly good for emailing a handful of people at once, but it was never built for large, personalized campaigns. This guide shows how to send bulk email from Gmail, what its limits are, and when it makes sense to move to dedicated bulk email software. Can you send bulk email from Gmail? Yes,