Paubox Email API & SMTP solutions: comparison

Paubox offers a variety of solutions to send email securely with encryption. While our Encrypted Email solution is the best fit to send email directly from your G Suite, Microsoft Office 365, or Exchange Server email accounts (info and sign up here), we also have robust REST API and SMTP solutions.

Paubox Email API (REST API)

Built for developers who are looking to bulk send automated transactional email (for example, password resets or appointment reminders).

Most flexible of our API/SMTP solutions; requires the most dev expertise.

Requirements:

• Platform that can send mail and requests (i.e. Postman)
• Domain verification via TXT record
• Developer or developer skills to write code to send email

We’ll provide: 

• API console in the Paubox admin panel
• Instructions to generate API keys
• SDKs in several programming languages

SMTP Server Solution (App/Program Sending via Paubox Servers)

Designed for organizations who want to send encrypted email from an application (the application doesn’t need to have the ability to send email - it needs to authenticate with Paubox and initiate messages from Paubox servers).

Requirements:

• Application that can authenticate with Paubox over SMTP
• STARTTLS enabled on your application (TLS v1.2 or higher)
• Developer or developer skills to write code to send email

We’ll provide: 

• Username and password for authentication
• Paubox host and port info
• Code samples
• Dashboard to monitor mail traffic

SMTP Relay Service (On-Premise Mail Server Relaying Mail via Paubox Servers)

Designed for organizations who have an on premise email server solution with a static IP address. This setup allows customers to relay email traffic to Paubox over an encrypted connection with Paubox securing all messages to the end recipients. 

Most standard of our API/SMTP solutions; easiest to use. 

Requirements:

• On-premise server that can relay email to Paubox over SMTP
• STARTTLS enabled on your on-premise mail server (TLS v1.2 or higher)

We’ll provide: 

• Paubox host and port info

For any questions on how to get started with any of the above solutions, please reach out to sales@paubox.com to speak with an account representative.