Postal
Virtual mailbox software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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What is Postal
Postal is an open-source mail server platform used to send and receive email for applications and organizations. It provides SMTP delivery, message routing, and administrative tools for managing domains, users, and queues. Typical use cases include self-hosted transactional email, internal mail infrastructure, and environments that need control over mail delivery and data residency. It is deployed and operated by the customer rather than delivered as a managed mailbox service.
Self-hosted deployment control
Postal can be deployed on customer-managed infrastructure, which supports data residency and internal security requirements. Teams can control configuration, retention, and operational policies without relying on a third-party mailbox operator. This can fit engineering-led organizations that already run Linux services. It also enables customization that is not available in managed mailbox services.
Email delivery infrastructure features
Postal includes core mail server capabilities such as SMTP handling, queue management, and domain/user administration. It is designed around sending email reliably from applications and services. Administrators can manage routing and operational settings from a central interface. This aligns with needs for transactional email and internal mail operations rather than physical mail handling.
Open-source licensing model
As an open-source project, Postal can be evaluated without vendor procurement and can be modified to meet specific requirements. Organizations can audit the codebase and integrate it into existing tooling. This can reduce dependency on a single commercial provider for core mail delivery functions. Ongoing costs are primarily infrastructure and operations rather than per-mailbox fees.
Category mismatch for virtual mail
Postal is an email server, not a virtual mailbox service for physical postal mail. It does not provide mail receiving addresses, mail scanning, forwarding, check deposit, or shredding workflows typical of virtual mailbox software. Buyers looking for digital mailroom or remote mail handling will not get those capabilities. The product name can be confused with postal-mail solutions, but the functionality is for email.
Requires operational expertise
Running Postal requires system administration skills for deployment, monitoring, backups, and upgrades. Email deliverability also depends on correct DNS configuration (SPF/DKIM/DMARC), IP reputation management, and abuse controls. These responsibilities sit with the operator rather than a managed service provider. This can increase time-to-value for non-technical teams.
Limited vendor-backed support clarity
As an open-source project, support and SLAs may not be available in the same way as commercial SaaS offerings. Organizations may need to rely on community resources or internal expertise for troubleshooting. Long-term roadmap and maintenance depend on the project’s stewardship and contributor activity. This can be a risk for enterprises that require contractual support commitments.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Economy | Free (free forever for one individual user) | Unlimited sending in the U.S.; no recipient addresses required; “only pay for gifts that are accepted” (pay only for fulfilled gifts); curated gifting marketplace; basic integrations and monthly expense reporting. |
| First Class | Custom pricing — Contact Sales | Everything in Economy plus multi-team support: user & team budget management, pre-upload funds, branded storefront (with warehousing), automation & integrations, international sending, dedicated onboarding & CSM; enterprise security/compliance options. |
Additional official pricing notes (Postal Help Center - Direct Mail):
- Postcard: $0.90
- Global Postcard: $1.93
- 8x11 Letter with Window Envelope: $1.85
- Global 8x11 Letter with Window Envelope: $2.88
- Trifold Brochure: $1.85
- Global Trifold Brochure: $2.88
- Large Postcard: $1.35
- Global Large Postcard: $2.38
- Notecard: $1.65 - $2.62 (These direct-mail per-piece prices are published in Postal's Help Center and are labeled as "Prices Subject to Change".)
Seller details
Postal (open-source project; original stewardship associated with Krystal Hosting)
Open Source
https://postalserver.io/
