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What is SMTP.com?

Dependable SMTP relay and email delivery services are essential for managing your communications. With robust email delivery solutions, you can effortlessly send and monitor significant quantities of emails. In a matter of minutes, you can integrate these services and commence sending your emails. All aspects of your email delivery, including transactional and relay requirements, are managed in one convenient location. SMTP has the capability to provide a trustworthy backend solution or a flexible infrastructure that accommodates large email volumes. The proprietary technology known as Reputation Defender utilizes extensive data analysis to proactively safeguard and enhance the health of your email list. It also filters out problematic emails, including both soft and hard bounces, thereby preserving your IP reputation and domain integrity. This proactive approach ensures that your email delivery rates and placement in recipients' inboxes steadily improve over time. As a result, you can expect not only enhanced deliverability but also greater engagement from your audience.

What is Postfix?

Postfix, a mail server created by Wietse Venema at IBM research, serves as a practical alternative to the widely-used Sendmail program and is continuously updated and improved by Wietse in his role at Google. This powerful mail server is compatible with a range of UNIX systems, such as AIX, BSD, HP-UX, IRIX, LINUX, MacOS X, Solaris, and Tru64 UNIX, and operates with the requirements of ANSI C, a POSIX.1 library, and BSD sockets. Focused on speed, user-friendly administration, and robust security, Postfix presents a user interface similar to that of Sendmail, but its underlying framework is fundamentally different. It boasts several advanced features, including support for multiple SMTP deliveries over a single TLS-encrypted connection by utilizing tlsproxy(8) and scache(8) services and the capability to execute MySQL stored procedures. Furthermore, Postfix includes a gradual degradation feature that enables the daemon to log warnings and persist in functioning even when minor service issues arise, avoiding abrupt terminations due to fatal errors. Additionally, it can activate the execute bit on a queue file, a crucial aspect since failing to do so could hinder successful mail delivery. Collectively, these features establish Postfix as an adaptable and reliable option for effective mail server management, making it a favored choice among administrators seeking a robust solution for their email needs.

Media

Media

Integrations Supported

Airtable
Axis LMS
Azure Marketplace
DeliverySuite
Gmail
Google Calendar
Google Docs
IBM Cloud
ISPConfig
IntelliClick
MailRoute
Microsoft Exchange
MySQL
Netdata
Raptor Email Security
Shopify
Trello
VHCS
WordPress
Wufoo

Integrations Supported

Airtable
Axis LMS
Azure Marketplace
DeliverySuite
Gmail
Google Calendar
Google Docs
IBM Cloud
ISPConfig
IntelliClick
MailRoute
Microsoft Exchange
MySQL
Netdata
Raptor Email Security
Shopify
Trello
VHCS
WordPress
Wufoo

API Availability

Has API

API Availability

Has API

Pricing Information

$25 per month
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Ziff Davis

Date Founded

1995

Company Location

United States

Company Website

www.smtp.com

Company Facts

Organization Name

Postfix

Company Location

United States

Company Website

www.postfix.org/features.html

Categories and Features

Email Deliverability

DMARC Analytics
Deliverability Alerts
Deliverability Reporting
Email Address Verification
Email Content Testing
Email Previewing
IP Blacklist Monitoring
Inbox Placement Testing
Reputation Reporting

Email Verification

Bulk Email Verification
Catch-all Server Detection
Disposable Email Detection
Domain Check
Mail Server Validation
Single Email Verification
Spam Trap Detection
Syntax Check

Transactional Email

A/B Testing
Contact Database
Dynamic Content
Email Monitoring
Mailing List Management
Reporting/Analytics
Spam Check
Template Management

Categories and Features

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