IMail Server
Email software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
Take the quiz to check if IMail Server and its alternatives fit your requirements.
Contact the product provider
Free Trial
Free version unavailable
Small
Medium
Large
- Information technology and software
- Professional services (engineering, legal, consulting, etc.)
- Energy and utilities
What is IMail Server
IMail Server is an on-premises email server software product used to provide SMTP/POP3/IMAP mail services for organizations that want to host and manage their own email infrastructure. It targets IT teams that need local control over mail routing, user mailboxes, and server configuration rather than using a cloud email suite. The product is typically deployed on Windows Server and is managed through administrative tools for configuration and maintenance. It is positioned as a self-hosted mail server rather than a bundled productivity suite.
Self-hosted email control
IMail Server supports running email services on infrastructure managed by the customer, which can help organizations keep mail data and server policies under their own administration. This model can fit environments with strict internal governance or network segmentation requirements. It also avoids dependence on a third-party hosted mailbox provider for core mail transport. For some teams, this provides more direct control over configuration changes and maintenance windows.
Standard mail protocol support
IMail Server is designed around common email protocols such as SMTP for transport and POP3/IMAP for mailbox access. This allows it to work with a wide range of desktop and mobile email clients without requiring a proprietary client. It can also integrate into existing DNS and mail routing setups used for business domains. Protocol-based interoperability is useful when organizations have mixed client environments.
Fits legacy Windows environments
IMail Server is commonly associated with Windows Server deployments and can align with organizations that standardize on Microsoft server administration practices. For smaller IT teams already operating Windows-based infrastructure, this can reduce the need to introduce a separate mail appliance or Linux-based stack. It can be deployed within existing on-prem network and security tooling. This can be relevant for sites that prefer local server management over cloud administration portals.
Limited modern collaboration features
IMail Server focuses on core email server functions and does not typically provide the broader collaboration capabilities found in cloud productivity suites (for example, integrated document collaboration, team chat, and unified calendaring experiences). Organizations that need an all-in-one collaboration platform may require additional products alongside it. This can increase integration and support effort. It may also lead to a less consistent end-user experience across tools.
Higher operational overhead
Running a self-hosted mail server requires ongoing administration for patching, backups, monitoring, spam and malware controls, and incident response. Deliverability management (SPF, DKIM, DMARC, reputation, and outbound IP hygiene) can require sustained attention to avoid mail being rejected or routed to spam. Compared with hosted email services, the organization assumes more responsibility for uptime and security. This can be challenging for small teams without dedicated messaging expertise.
Unclear current product status
Publicly available, up-to-date information on IMail Server’s current ownership, roadmap, and support lifecycle can be difficult to verify without vendor documentation. For buyers, this can create risk around long-term maintenance, compatibility with evolving email security requirements, and availability of updates. Procurement teams may need to confirm support terms and version currency directly with the seller. This uncertainty can be a deciding factor when comparing against actively maintained hosted offerings.
Seller details
Progress Software Corporation
Burlington, Massachusetts, USA
1981
Public
https://www.progress.com/
https://x.com/ProgressSW
https://www.linkedin.com/company/progress-software/
