Mailflow
Free inbox warm-up for cold senders, backed by QuickMail's warm-up network.
Overview
Mailflow is a warm-up tool for cold senders backed by QuickMail: it warms Google Workspace and Outlook accounts with a free tier so operators can build sender reputation on new inboxes without a separate subscription. It handles the core warm-up loop of automated sends, opens, and positive-signal replies to train providers that your patterns look human. It is deliberately lightweight, with fewer advanced analytics and a smaller network than premium paid tools, and paid tiers raise daily warm-up volume.
Best for: Building reputation on new inboxes at zero cost: a free, no-frills warm-up for cold senders.
Key features
Pricing
| Plan | Price | Includes |
|---|---|---|
| Free | $0 per month | up to 5 warm-up emails/day |
| Starter | $49 per month | up to 30 warm-up emails/day |
| Pro | $99 per month | up to 50 warm-up emails/day |
Pricing changes often. Verify current pricing on the vendor site before you buy.
Pros and cons
Pros
- Free warm-up tier
- Works with Google and Outlook stacks
- Backed by established QuickMail infrastructure
Cons
- Limited analytics versus paid tools
- Smaller warm-up network
- Warm-up only, no diagnostics or verification
Integrations
Gmail
Google Workspace
Outlook
Office 365
QuickMailTop Mailflow alternatives
Links
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