New smarthost feature in plesk

Question

The new Smarthost feature in Plesk allows users to configure an external mail server to relay outgoing emails from their Plesk server. This can improve email deliverability and ensure compliance with email hosting policies by using trusted mail servers for outbound messages.

Key Features:

1. Improved Email Deliverability: By routing outgoing emails through a reliable external SMTP service, it minimizes the chances of emails being flagged as spam.
2. Customizable Configuration: Admins can specify their preferred Smarthost, including authentication details and port settings.
3. Enhanced Email Security: Ensures outbound emails meet authentication standards (e.g., SPF, DKIM) enforced by the relay server.
4. Fallback Options: Some implementations allow for backup Smarthosts in case the primary is unreachable.

This feature is particularly useful for users running their own mail servers who want to enhance their email reliability or leverage third-party email services for sending.

Answer 1

Here are additional benefits of the new Smarthost feature in Plesk:

1. Reduced Server Load

By offloading outgoing email processing to a Smarthost, the Plesk server can focus on its core responsibilities, improving overall performance.

2. Compliance with ISP Policies

Many ISPs block direct email-sending from dynamic IP addresses. Using a Smarthost ensures compliance with these restrictions, allowing smooth delivery.

3. Simplified Email Management

Centralizing outgoing mail through a Smarthost reduces the complexity of managing DNS records (e.g., SPF, DKIM) for multiple domains hosted on Plesk.

4. Blacklisting Prevention

Routing through a trusted relay server reduces the likelihood of your Plesk server's IP address being blacklisted, preserving its reputation.

5. Global Access

For servers located in regions with restricted email delivery, a Smarthost can act as a relay to ensure emails are delivered worldwide without regional blocking.

6. Scalability

A Smarthost service can handle higher volumes of outgoing emails efficiently, making it an excellent option for businesses scaling up their email usage.

7. Monitoring and Reporting

Many third-party Smarthost providers offer detailed analytics and reporting, helping you track email performance, bounce rates, and potential issues.

8. Spam Filtering and Malware Scanning

Some Smarthost services include advanced spam filtering and email scanning, adding an extra layer of protection to your email infrastructure.

These benefits make the Smarthost feature an essential tool for businesses looking to enhance their email operations securely and reliably.