MaxSend
Massive recipient lists
Stream CSV imports with millions of rows. Paste leads, map columns, validate addresses, dedupe per campaign, and browse a searchable paginated list—all stored locally in SQLite.
Native for Mac & iPad
Send at scale.
Stay in control.
High-volume email through SMTP servers you own. Import millions of recipients, personalize every message, throttle delivery—and keep every campaign on your device.
macOS 14.6+
iPadOS 17+
Local-first data
5M+Recipients per list
100%Your SMTP server
0Cloud list uploads
24/7Pause & resume sends
Features
Professional sending, on your terms
Everything a high-volume mail client should handle—composition, lists, pacing, and protocol—without renting someone else's infrastructure.
Rich HTML compose
Plain text and HTML with live preview, formatting toolbar, merge fields, attachments, and Cc/Bcc.
Keychain-secured SMTP
SSL/TLS and STARTTLS. Passwords never touch the database. Test connection before you send.
Throttled delivery
Parallel connections, rate limits, retries, live ETA, and copyable error logs.
Deliverability guide
In-app tips on SPF, DKIM, DMARC, warmup, and permission-based sending.
How it works
Four steps to your first campaign
From SMTP setup to live send dashboard—designed for long runs you can pause and resume.
01
Connect SMTP
Add host, port, security, and credentials. Verify with Test Connection.
02
Compose
Write subject and body with tokens like {{firstName}}. Attach files.
03
Import
CSV column mapping or paste-in. Invalid emails filtered; duplicates skipped.
04
Send
Configure workers and throughput. Watch progress. Pause anytime.
Responsible use
Privacy policy
Built for permission-based mail
Use MaxSend only when recipients expect to hear from you. Comply with CAN-SPAM, GDPR, CASL, and local law. MaxSend does not bypass spam filters.
Ready to send from your own server?
Download MaxSend for Mac and iPad. Your lists stay on your device.
Download on the App Store