Mystrika
Warmup Inbox is an email warmup tool that improves deliverability by building sender reputation through automated engagement with a network of real inboxes.
Warmup Inbox is a focused email warmup tool designed to solve one of the most persistent challenges in cold outreach: getting your emails into the primary inbox instead of the spam folder. It works by gradually building your sender reputation through automated engagement with a network of over 20,000 real inboxes. The tool sends and replies to emails on your behalf, simulating natural email activity that signals to providers like Gmail and Outlook that you are a legitimate sender.
The platform stands out for its simplicity and automation. After connecting your email account, the system handles the warmup process without requiring manual intervention. It offers detailed reputation scores, spam and category checks, and real-time alerts if any issues arise. This makes it a practical choice for sales teams and marketers who need reliable deliverability without spending hours on configuration.
Pricing is straightforward and scales with volume. The Basic plan at $15 per inbox per month supports 75 messages per day with up to 25% replies. The Pro plan at $49 per inbox per month increases to 250 messages per day and adds custom warmup templates and priority support. The Max plan at $79 per inbox per month handles 1,000 messages per day with unlimited API access and premium support. All plans include a 7-day free trial with no credit card required.
Warmup Inbox integrates with major email providers including Gmail, Outlook, Zoho, and SendGrid. It is not a bulk email sending platform or a CRM -- it focuses exclusively on improving sender reputation for better inbox placement. This narrow focus is both a strength and a limitation. For teams that already have a sending tool and need to fix deliverability, it is an excellent addition to the stack. But if you need an all-in-one solution, you will need to pair it with other tools.
The tool is best suited for sales and marketing teams that rely on cold email outreach and struggle with low deliverability rates. It is particularly useful for new email accounts that lack a sending history, or for accounts that have been flagged by spam filters. The quick setup and automated engagement mean you can see improvements in as little as one week.
Overall, Warmup Inbox delivers on its core promise. It is a no-frills, effective warmup service that addresses a critical pain point for cold emailers. The combination of affordable pricing, a large inbox network, and responsive support makes it a solid choice for anyone serious about email deliverability. If your emails are landing in spam, this tool is worth a try.
Features
- Improve email deliverability
- Avoid spam folders and blacklists
- Monitor and improve reputation
- Land in primary inbox
- Receive alerts on issues
- Align content with ICP
Pricing
Pros
- Easy to use and quick setup
- Effective at improving deliverability
- Affordable pricing with a free trial
- Responsive customer support
- Detailed reputation scores and alerts
Cons
- Not a full email sending platform
- Limited to email warmup only
- No built-in CRM or bulk sending capabilities
Best For
Sales and marketing teams, startups, SMBs, and mid-market companies looking to improve cold email deliverability.