How to Send Mass Email in Outlook

Businesses can use Outlook for bulk outreach by creating contact lists, composing a message, and sending it to recipients, preferably through the BCC field to protect addresses, prevent reply-all issues, support privacy compliance, and reduce spam risks. For personalized campaigns, Outlook’s Mail Merge feature in Microsoft Word can connect to recipient data from Excel or CSV files and insert merge fields into individual messages, while Excel VBA macros can automate sending and attachments; third-party add-ins such as Secure Mail Merge can help distribute different attachments to different recipients. Outlook bulk sending is constrained by recipient, daily sending, attachment-size, and file-type limits, and it lacks built-in list segmentation, advanced design and personalization, automated analytics, follow-ups, and unsubscribe management. Organizations needing scalable, compliant campaigns with tracking, deliverability tools, and richer marketing features may instead use dedicated email service providers or email marketing platforms.

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