1. Inframail: Revolutionizing Cold Email Infrastructure

At Inframail, we are revolutionizing cold email infrastructure with unlimited inboxes at a flat rate. 

We provide: 

• Microsoft-backed deliverability

• Dedicated IP addresses

• Automated technical setup 

This helps customer outreach efforts efficiently like: 

• Agencies

• Recruiters

• SDRs

The main benefits of using our service: 

• Automated SPF, DKIM, and DMARC setup

• Dedicated email servers for each user

• 16-hour priority support daily

Unlike traditional providers that charge per inbox and leave you wrestling with technical configurations, Inframail streamlines the entire process. We handle the complex infrastructure setup while you focus on reaching more prospects. 

InfraMail provides the robust email infrastructure you need without the usual technical headaches and per-inbox costs, whether you're: 

• An agency looking to scale outreach

• A recruiter connecting with candidates

• An SDR driving sales

Start buying domains now and set up your email infrastructure today with our email infrastructure tool.   

2. Warmup Inbox: Your Cold Email Reputations New Best Friend

Warmup Inbox is an email warmup service that can help you increase your campaigns' deliverability and improve your email account's reputation over time. The tool provides a network of over 20,000 inboxes that your email account can utilize for the warmup process. Warmup Inbox is pretty easy to use – after you sync your inbox with the platform, the tool will interact and engage with your account. This process includes: 

• Replying to your emails

• Marking them as necessary

• Pulling them out of the spam folder, etc. 

Besides the basic warm-up process, the Warmup Inbox also offers many other valuable features, such as: 

• Monitoring the sender’s reputation

• Alerting you about any issues with your reputation

• Checking the spam rate of your emails

• Checking whether your email is present on any blacklist 

The email account setup is pretty straightforward – you can sync your inbox into the Warmup Inbox platform and the tool will automatically start communicating with its network of real users. 

Warmup Inbox supports all major providers, such as: 

• Gmail

• Yahoo!

• Outlook

• Zoho and others

3. Mailwarm: The Email Warmup Tool with a Custom Schedule

Mailwarm is a pretty easy and straightforward tool: once you set up your email account for the service, it will start sending and replying to your emails and gradually warm up your account. One of the excellent features of this tool is that you can set up your schedule for the warmup process and control when the inboxes should automatically start sending and replying to emails. 

Besides the warmup schedule, Mailwarm also performs other actions within the inbox, such as: 

• Retrieving emails from the spam folder

• Marking emails as “important,”

• Opening up incoming emails

4. GMass: An All-in-One Solution for Gmail Users

GMass is a service that provides a decent email warmup tool, among other exciting things. The company offers eight valuable tools heavily focused on Gmail (since it wants to serve as an all-in-one solution for Gmail providers). With GMass, you can monitor the reputation of your domain, check out statistics about your opening rate, or even start a massive cold email campaign. 

This vast email conglomerate has its limitations. Since GMass is all about Gmail services, it might not work well for people who need to warm up their email accounts for other email providers.

5. Mailreach: The Very Basic Email Warmup Tool

Mailreach is a standalone email warmup tool designed by a French company in 2020. The tool is straightforward– once your inbox is set up and connected to Mailreach, it will automatically start sending and replying to emails. Besides the generic warm-up, it also provides a few exciting features, such as: 

• Testing the emails and evaluating your spam score

• Checking your email accounts in blacklists 

• Detailed deliverability reports

A slight downside (at least to some people) is that Mailreach email replies are not generated by real people (so they might seem a little suspicious to ESPs in some cases).

6. Lemwarm: The First Email Warmup Tool

Lemwarm is a well-established (though a bit old-school) email warmup tool – it was the first email warmup service ever to appear in the market. Lemwarm allows you to control the exact number of warmup emails you want to send from your inbox daily. Once you set up your account and start the warming process, the tool will automatically start sending emails on your behalf within its network of inboxes (and create replies generated by real people).

7. Folderly: The AI-Powered Email Deliverability Tool

Folders is an AI-powered email deliverability service focusing on more than just the warm-up process. It uses machine-learning systems that help email inboxes interact with emails like real people do – by creating and replying to emails with the following: 

• Meaningful content

• Opening

• Marking

• Interacting with messages, etc. 

Besides the generic warm-up process, Folderly also offers to run massive email outreaches and email analyses for companies that need more than just adequately warmed up in boxes.

8. Reply.io: An All-in-One Sales Engagement Platform

Reply is an all-in-one sales engagement platform that provides a simple warmup add-on. Reply’s Email Warm-Up tool is based on a network of actual inboxes that communicate with each other. It utilizes peer-to-peer sending without any free or temporary email accounts, making the warm-up process safe and reliable. 

With this network of users, Reply can create a positive engagement by interacting with your emails – it opens and replies to your emails or marks them as necessary. Unfortunately, the warmup tool is available only for Outlook and GSuite.

9. InboxWarm (by OutreachBin): A User-Friendly Warmup Tool

InboxWarm is an email warm-up tool that is part of OutreachBin’s platform. The tool uses an advanced algorithm that ensures human-like interaction with emails within its peer-to-peer network of users. Once you connect your email account to OutreachBin’s platform, the inbox will become part of its network and gradually improve its reputation by communicating with other accounts. 

InboxWarm is very user-friendly and can be easily used even by absolute beginners. Although the service claims that you can warm up your account in only 2 weeks, it also recommends that you continue to warm up your account to maintain your email reputation.

10. Warmbox: An Email Warm Up Tool with AI Capabilities

Warmbox is a standalone warm-up tool that can increase your email reputation by automatically sending emails from your account and interacting with them. Similarly to other popular warm-up tools, Warmbox uses its private network of more than 35,000 inboxes that communicate with each other and gradually increases the reputation of each email account connected. 

One of its unique features is its GPT-3 AI algorithm for each inbox, which helps generate and send unique emails between accounts (and, therefore, create natural conversations between accounts). It also provides detailed monitoring tools and analytics to show you reports about your reputation and overall warm-up progress.

11. Woodpecker: A Free Tool for Cold Email Users

Woodpecker offers users a free warm-up tool included in the subscription for its whole service. The setup for the warm-up process is effortless and straightforward – all you need to do is connect to the platform and turn on the warm-up process with just one click. You can also choose whether you would like to warm up your whole email domain or just one email address you plan to use for your campaigns. 

Woodpecker does precisely what you would expect from a proper warm-up tool. Automatically: 

• Sends warm-up emails

• Pulls them out from the spam folder

• Marks them as necessary, etc

Besides ramping up your email reputation, you can also use Woodpecker to recover your reputation if it starts to decrease or to keep your deliverability high all the time.

12. AutoWarmer (by QuickMail): A Warmup Tool with Human Language Capabilities

AutoWarmer is a warm-up tool that is integrated into QuickMail’s email platform. The tool can improve the sender’s reputation by positively engaging your inboxes. It: 

• Auto-replies to your emails from its network of inboxes

• Pulls the emails out of the spam folder

• Slowly increases the reputation of your email account. 

A nice feature of AutoWarmer is that it can generate emails that contain business language that you usually use daily. Autowarmer claims it can improve your domain reputation within the first 1 – 2 weeks (as opposed to a regular warm-up process that may take 3 to 4 weeks).

13. Mailflow: An Essential Email Deliverability Solution

Mailflow offers an essential solution for strengthening your email deliverability through full-fledged features like: 

• SPF & DKIM Checks

• Blacklist Monitoring

• Email Auto Warmer

Its real-time monitoring capabilities ensure that users maintain an optimal sender reputation. 

Features: 

• SPF & DKIM checks: Verifies email authenticity to ensure your emails are trusted. 

• Blacklist monitoring: Monitors your status on email blacklists to protect your sender reputation. 

• Email auto warmer: Gradually improves your email reputation, ensuring better deliverability.

14. TrulyInbox: A Powerful Email Management Tool

TrulyInbox is a powerful email management tool designed to declutter your inbox and improve productivity. It streamlines your email experience with features like: 

• Intelligent categorization

• Snooze options

• Integration with popular email platforms

Whether tackling a flooded inbox or striving for better organization, TrulyInbox simplifies digital communication.

15. Omnisend: A Comprehensive Email Marketing Platform

Omnisend offers a comprehensive email marketing platform with a built-in email warmup service for new domains and email addresses. 

Here’s a closer look at what Omnis end's free email warmup tool has to offer: 

• Features Automated warmup schedules

• Integration with Omnisend’s email marketing suit

•  Real-time monitoring and analytics

• AI-powered content suggestions

16. Allegrow: An All-in-One Warmup Solution

Allegrow offers an all-in-one solution for email warmup and deliverability improvement. 

Features: 

• Automated engagement simulation 

• IP and domain reputation monitoring Integration with major email service providers 

• Custom warmup strategies