How to Set Up Email Signatures in Plesk for All Users
Plesk is one of the most popular hosting control panels in Europe, widely used by IT administrators, hosting providers, and businesses across Belgium and the broader EU. If your organisation relies on Plesk-hosted email, ensuring every user has a consistent, professional email signature is essential for brand identity, legal compliance, and marketing impact.
In this guide, we walk you through the different methods to set up email signatures in Plesk for all users — from manual configuration to fully automated, centrally managed solutions.
Why Email Signatures Matter for Plesk-Hosted Businesses
Before diving into the technical setup, it is worth understanding why email signatures deserve your attention:
- Brand consistency: Every outgoing email is a touchpoint with clients, partners, and prospects. A unified signature reinforces your professional image.
- Legal compliance: In Belgium and across the EU, business emails often need to include company registration details, VAT numbers, and GDPR-related information.
- Marketing opportunities: Signatures can include promotional banners, social media links, and calls to action that drive engagement.
- Time savings: Centralised management eliminates the need for each user to manually configure their own signature.
Method 1: Manually Configure Signatures in Plesk Webmail (Roundcube)
Plesk typically ships with Roundcube as its default webmail client. Each user can manually set their signature through the Roundcube interface. Here is how:
Step-by-Step for Individual Users
- Log in to Roundcube webmail via your Plesk-hosted domain (e.g.,
webmail.yourdomain.be). - Navigate to Settings in the top-right menu.
- Select Identities from the left sidebar.
- Click on your email identity or create a new one.
- In the Signature field, enter your desired signature. Toggle the HTML editor if you want to include formatted text, images, or links.
- Check the box Automatically add signature to ensure it appears in every new email and reply.
- Click Save.
Limitations of Manual Configuration
While this method works for small teams, it presents significant challenges for organisations with more than a handful of users:
- Each user must configure their own signature, leading to inconsistencies.
- Updating signatures company-wide (e.g., for a rebranding or a new promotional banner) requires contacting every user individually.
- There is no centralised control or audit trail for IT administrators.
- HTML signatures with images may render inconsistently depending on how users paste or edit them.
Method 2: Use Plesk Server-Level Mail Configuration
Plesk administrators with root or admin-level access can implement signatures at the server level using Postfix (the default MTA on most Plesk installations). This approach involves modifying mail transport rules to append signature content to outgoing messages.
General Approach
- Create an HTML signature template file on the server.
- Use a Postfix content filter or milter to append the signature to outgoing emails.
- Configure rules per domain or per user as needed.
Considerations
This method gives administrators more control but comes with its own drawbacks:
- It requires advanced Linux server administration skills.
- Signature customisation per user (e.g., name, job title, phone number) requires scripting or integration with a directory service.
- Maintaining HTML email signatures that render correctly across all email clients (Outlook, Gmail, Apple Mail, Thunderbird) is technically challenging.
- Updates and changes still require manual server intervention.
- Server upgrades or Plesk updates may overwrite custom configurations.
Method 3: Centralised Email Signature Management with Badex Signature
For organisations that want a professional, scalable, and hassle-free solution, a dedicated email signature management platform is the recommended approach. This is where Badex Signature comes in.
Badex Signature is a SaaS platform designed specifically for centrally managing email signatures across your entire organisation. What makes it particularly well-suited for Plesk-hosted environments is its compatibility with generic SMTP servers — including those managed through Plesk, cPanel, Roundcube, and DirectAdmin — in addition to full Microsoft 365 integration.
How Badex Signature Works with Plesk
- Central dashboard: Design and manage all email signatures from a single, intuitive web interface. No need to touch the server or ask individual users to make changes.
- Dynamic fields: Automatically populate each user's signature with their name, job title, phone number, department, and other details using dynamic placeholders.
- SMTP-level integration: Badex Signature integrates at the mail transport level, meaning signatures are applied consistently regardless of which email client users prefer — Roundcube, Thunderbird, Outlook, or mobile apps.
- HTML signature templates: Choose from professionally designed, mobile-responsive templates or create your own. No more broken formatting or missing images.
- Promotional banners: Easily add, schedule, and rotate marketing banners across all signatures without any user intervention.
- GDPR and legal compliance: Include mandatory legal disclaimers and company information in every outgoing email automatically.
Key Benefits for IT Administrators and Hosting Providers
- Zero end-user involvement: Signatures are applied server-side, so users do not need to configure anything.
- Multi-domain support: Manage signatures for multiple domains and clients from one platform — ideal for hosting providers and MSPs.
- Instant updates: Roll out signature changes, new branding, or seasonal campaigns across all users in seconds.
- Works alongside Microsoft 365: If your organisation uses a mix of Plesk-hosted email and Microsoft 365, Badex Signature supports both environments seamlessly from the same dashboard.
- No server modifications needed: Unlike DIY Postfix configurations, Badex Signature does not require you to modify server files or risk losing settings during updates.
Practical Tips for Managing Plesk Email Signatures
Regardless of which method you choose, keep these best practices in mind:
- Keep it clean: A good email signature includes your name, title, company, phone number, website, and legal information. Avoid clutter.
- Optimise for mobile: Over half of business emails are read on mobile devices. Ensure your signature renders well on small screens.
- Use hosted images: Instead of embedding images directly, host them on a web server and reference them via URL. This reduces email size and improves deliverability.
- Test across clients: Always test your signature in Outlook, Gmail, Apple Mail, and Thunderbird before rolling it out company-wide.
- Review regularly: Update signatures at least quarterly to reflect personnel changes, new campaigns, or updated legal requirements.
Conclusion
Setting up email signatures in Plesk does not have to be a manual, error-prone process. While Roundcube allows individual users to configure their own signatures, and server-level Postfix modifications offer some centralised control, neither approach delivers the ease, consistency, and scalability that modern businesses need.
With Badex Signature, IT administrators and hosting providers can centrally manage professional email signatures for all Plesk-hosted users — as well as Microsoft 365 accounts — from a single platform. It is the most efficient way to maintain brand consistency, ensure legal compliance, and turn every email into a marketing opportunity.
Ready to streamline your email signature management? Discover how Badex Signature works with your Plesk environment and start your free trial today.