Mass Email Limit Salesforce refers to the 5,000 emails per organization per day restriction on bulk sending. This phrasing variation reflects how users search for the constraint—different word orders for the same limitation affecting organizational email scaling.

Core Mechanics

The limit applies to all mass email functionality: campaign emails, list view sends, mass API calls, and automated workflow emails. Each recipient counts as one email against your shared 5,000 organizational allocation.

Tracking operates on a rolling 24-hour window. Emails sent Monday at 3 PM count until Tuesday at 3 PM. The system measures send attempts, not successful deliveries—bounced emails and unsubscribed contacts still consume capacity.

Scaling Problems

The limit doesn't scale with growth. A 10-person startup and a 100-person enterprise share an identical 5,000 capacity. Adding sales reps reduces per-person allocation rather than increasing total capacity.

Marketing campaigns typically exceed limits. A 10,000-person newsletter requires two days, consuming all organizational email capacity—sales prospecting stops, automated sequences pause, and other campaigns wait.

Strategic Approaches

Send fewer, better-targeted emails. Segment by engagement and email only responsive contacts. A 3,000-person engaged list outperforms a 10,000-person disengaged list while using less capacity.

Coordinate across teams with organizational calendars. Marketing claims Monday/Wednesday for campaigns, sales get Tuesday/Thursday for prospecting. This prevents conflicts but reduces flexibility.

Clean lists aggressively. Remove bounced addresses, suppress unengaged contacts. Poor list quality wastes capacity on emails that won't deliver or convert.

MassMailer removes the 5,000 limit entirely. Built natively within Salesforce, it enables unlimited daily sending without ESP integration complexity or data synchronization. Teams scale from 5,000 to 500,000 emails while maintaining existing workflows.