LiftInbox
LiftInbox is an automated email warmup and deliverability SaaS tool that helps businesses, sales teams, marketers, and digital marketing agencies ensure their emails land in the inbox — not the spam folder. Poor sender reputation is the number one reason emails go to spam. LiftInbox fixes this by simulating real human email engagement and gradually building sender reputation with major email service providers including Gmail, Outlook, Yahoo, and all major SMTP setups. Features include automated warmup sequences, real-time sender reputation monitoring, email deliverability scoring, and an easy-to-use dashboard to track warmup progress. Whether you are launching a new email domain, running cold email outreach campaigns, or recovering a damaged sender reputation, LiftInbox provides a complete email deliverability service to maximize inbox placement. Compatible with Google Workspace, Microsoft 365, Amazon SES, Mailgun, SendGrid, Zoho, and cPanel. Ideal for cold email outreach, newsletters.
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AcelleMail
AcelleMail is self-hosted email-marketing and marketing-automation software sold under a one-time license, with full PHP/Laravel source code included. You bring your own sending provider — Amazon SES, SendGrid, or any SMTP — so there are no per-contact or per-email fees. It supports unlimited lists and subscribers, campaign automation, autoresponders, segmentation, bounce and feedback-loop handling, detailed analytics, and multi-user/multi-account management. Ideal for agencies, developers, and businesses that want to run their own email infrastructure at a predictable cost.
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TrueEmailer
TrueEmailer is a next-generation email platform that combines built-in warmup, campaign automation, and AMP interactive emails to deliver higher engagement, better inbox placement, and real-time analytics in one system.
Turn emails into interactive experiences forms, surveys, carts, and actions inside the inbox. Stop sending static emails people ignore. TrueEmailer lets your audience submit forms, answer polls, and take actions directly inside the email, so you get higher engagement and fewer drop offs.
Built in warmup and inbox placement protect reputation and keep campaigns out of spam. Most tools force you to use separate warmup platforms. TrueEmailer includes an automated warmup system that builds trust with ISPs and helps new domains and IPs scale safely.
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mailr.io
mailr.io is a high-volume cold email infrastructure platform designed to help users send up to 10,000+ emails per day within 72 hours. It is built on pre-warmed, US-based Microsoft servers, allowing users to begin sending emails from day one without damaging their inbox reputation. Each domain is grouped into its own US-based Microsoft tenant, providing enhanced deliverability and isolation. It offers a 3-day warmup period and a 72-hour setup time. Users can send 700 emails per day per domain on day one, scaling up to 1,000 emails per day per domain by day 14. mailr.io supports 99 Outlook inboxes per domain and integrates directly with sending tools, uploading all inboxes with pre-established warmup settings and sending limits. mailr.io includes an inbox-level bounce rate tracker, monitoring all inboxes 24/7 and disabling or replacing any with excessive bounce rates to protect domain reputation.
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