Multi-inbox sending at scale
Run campaigns across unlimited connected inboxes with smart rotation, parallel sending, and human-paced delivery patterns that protect account health and maximize inbox placement.



For marketing teams and agencies who need reliable email delivery without the complexity. Connect the mailboxes you own or are authorized to use, build subscriber campaigns through your own SMTP credentials, and manage sends, warmup, replies, and deliverability from one centralized dashboard with built-in sending limits that protect your reputation.
Something soft, something warm. Our spring drop is live a small collection we've been quietly shaping for months.

Trusted by marketing teams & agencies worldwide
Run campaigns across unlimited connected inboxes with smart rotation, parallel sending, and human-paced delivery patterns that protect account health and maximize inbox placement.
Opens, replies, bounce rates, inbox placement, account health, and campaign performance in clean dashboards built for email teams, not enterprise bloat.
Inbox vs. spam detection, bounce monitoring, real-time account health scoring, and auto-warmup so your emails land where they belong from day one.
Import from CSV, API, or Google Sheets. Subscribers are automatically distributed across inboxes and account groups with flexible per-account sending controls.
Dynamic variables, spintax, multi-step sequences, and thread-based follow-ups. Every email feels written by hand even when you're sending millions.
Replies from every connected inbox in one place. Threaded conversations, IMAP sync, and direct response from a single centralized workspace.
Dedicated IP pools, DKIM/SPF setup, sending throttling, automatic failover, and suppression systems built for reliable large-scale email operations.
Bounce spikes, spam placement, and sending limit violations are caught early with dynamic throttling and auto-pause systems that keep your accounts safe.
Validate every subscriber before sending with a multi-layer verification engine that reduces bounces, protects domain reputation, and lifts inbox placement rates.
Scrape verified business contacts from public directories, enrich contact info, and push clean prospects directly into active campaigns no manual work.
Full platform access from day one no feature gating, no add-ons, no hidden fees. First 100 customers get 20% off for 6 months.
What's included
Mail Hauler Pro
Then $44.99/mo after 6 months · Cancel anytime
Full platform access for marketing teams and agencies running email campaigns at scale with smart sending limits built in.
Dedicated IP pools, automated warmup, and real-time health scoring keep your emails out of spam from the first send.
Multi-inbox rotation, parallel sending, and human-paced delivery patterns let you scale without burning accounts.
Subscriber import, verification, sequencing, unified inbox, and analytics no stitching together five tools.

Join 12,400+ marketing teams sending premium email campaigns with Mail Hauler Pro. Our email automation platform takes 60 seconds to get started with 10,000 free emails per month, no credit card required.
Want to learn more first? Explore all email marketing features or read about our email automation platform.