Experience dependable email delivery through top-of-the-line SMTP services in the industry.

DooxMail's SMTP relay services enable senders worldwide to send marketing and transactional emails effortlessly, without the need to handle their own mail servers.

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SMTP service features

Our SMTP servers offers:


Real-time email tracking and advanced analytics to monitor your email program


Detailed logs to diagnose any sending issues


Advanced deliverability features to minimize bounce rates and spam complaints

Inbound Routes

Inbound Routes to streamline incoming email messages

Email Verification

Email address verification services to enhance your mailing list


Easy integration with major email providers like Gmail, Yahoo, and Outlook through TLS or SSL.


More to Discover

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SMTP sending made effortless

Managing your own SMTP servers can be a time-consuming and expensive process. If you are seeking to reduce ownership costs or future-proof your email program, a cloud-based SMTP service is an excellent solution. With DooxMail, you won't have to worry about expenses such as hardware and maintenance as we manage everything in-house. This allows you to focus on your core business.

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Understanding SMTP: Explaining SMTP Server

Simple Mail Transfer Protocol (SMTP) is a protocol used for sending and receiving emails between servers. An SMTP server requires authentication, which typically includes a username, password, IP address, ports, and security protocol (such as SSL or TLS). Once you add and authenticate a domain name in your DooxMail account, you can access all the necessary information to start sending emails through your application's SMTP email client. If you need further assistance, DooxMail provides SMTP documentation.

While SMTP servers are an efficient way to send outgoing emails, we recommend transitioning to an Email API if your systems can support it. Email APIs can process requests more quickly than typical SMTP services and are more scalable as your email volume grows over time.

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Simplify Incoming Message Management

To enhance the deliverability of your emails and prevent spammers from iBy configuring your SMTP setup and using routes, you can streamline your inbound email streams. Routes enable senders to declutter their email threads by fully parsing inbound messages and converting them to UTF-8 format for easy reading. In addition, complex MIME data from incoming messages can be converted into simple JSON, making inbound processing seamless for any business.

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In-Depth Email Analytics

DooxMail provides you with detailed email analytics and log retention, enabling you to understand every aspect of your email's journey. From the moment you send an email, you can track its progress and identify any issues with log retention. This eliminates the need to wake up in the middle of the night to record message errors, as you can access the information at your convenience.
Once your email reaches the inbox, you can monitor engagement metrics like opens and clicks to gauge email performance. You can also utilize hourly data to gain insight into recipient habits and dig deeper into metrics like devices, location, and mailbox providers to understand campaign performance.

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Integrate with Your Local Email Server

Pairing an SMTP email service with your own email server can provide numerous advantages. By integrating an SMTP service with internal servers, your application can achieve better performance as it transfers sent emails to the local server while still receiving the benefits of a robust SMTP provider. With DooxMail's email infrastructure, you can send one thousand or 10 million emails within minutes, and enjoy a 99.99% server uptime to ensure your emails are always delivered when you need them the most.

If you're unsure where to begin, DooxMail's documentation covers popular programming languages such as Python, Ruby, Java, and C# to facilitate implementation and simplify the process for you.

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Discover the Possibilities with the World's Best Email Delivery Platform

The possibilities with DooxMail's email delivery platform are endless. From improving email deliverability to simplifying inbound message management and monitoring email analytics, DooxMail provides you with the tools and features you need to achieve email sending success.

Getting started with DooxMail is easy, and you can begin for free.

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Ensure Email Delivery to Inboxes

To enhance the deliverability of your emails and prevent spammers from impersonating your brand, it is essential to secure your SMTP email streams with proper authentication protocols. By implementing protocols such as SPF, DMARC, and DKIM records, you can not only enhance your brand's reputation with recipients, but also with inbox service providers. Using these methods in conjunction with tools like our email address verification, inbox placement tests, and send time optimization can significantly decrease your spam rate, minimize spam complaints, and improve your email deliverability overall.

Looking for a more hands-on approach to achieve email sending success? Our Deliverability Service provides you with a dedicated Technical Account Manager who will guide you towards success in email delivery.

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