Is your team’s email signature GDPR compliant?

Regulation-Compliant Email Signatures in 2025: Automate Legal Disclaimers, Multi-Location Rules & More

The Use of Banners in Email Signatures: What’s Allowed and What’s Not

Many organizations use banners in their email signatures to promote brand content, drive traffic, or share updates. This is a smart use of a high-visibility space—but under GDPR, there are important distinctions to understand between branding and direct marketing.

✔️ Acceptable Banner Usage (Branding & Information)

Banners used for non-commercial purposes are generally compliant, especially when the email itself is part of a legitimate business communication. These include:

• Announcing upcoming webinars, demos, trade shows, or public events
• Sharing links to recent blog posts, case studies, or whitepapers
• Promoting internal initiatives or brand messaging (e.g., CSR, company values)
• Company news and press coverage
• Informational banners for client portals, system upgrades, or service changes

These banners are considered informational and brand-supporting rather than direct advertising. They do not require explicit opt-in as long as the email was sent under a lawful basis for communication (e.g., a customer or business contact).

❌ Banners That May Violate GDPR (Direct Marketing)

If your banner includes clear promotional language or calls to purchase, it likely qualifies as direct marketing. Examples include:

• “Buy Now for $99.99”
• “Limited-Time Offer – 50% Off This Week Only”
• “Click Here to Purchase”
• “Subscribe Now for Exclusive Deals”

Under GDPR, these types of banners require explicit consent from the recipient prior to being sent. Including such marketing messages in emails to recipients who haven’t opted in for marketing can violate GDPR rules and put your organization at risk.

GDPR: Required Fields in Email Signatures

While GDPR doesn’t provide a prescriptive list of what an email signature must include, several elements are considered essential to meet transparency, identification, and legal obligations - especially within the EU:

Required or Strongly Recommended Fields:

• Full legal entity name (as registered)
• Company registration number
• Registered business address
• VAT ID (if applicable)
• Sender’s full name and job title
• Direct contact information (email, phone number)
• Link to the company’s privacy policy
• Legal disclaimer (confidentiality notice, liability, or regulatory disclosures depending on your industry)

Having this information readily accessible helps ensure transparency, satisfies identification requirements, and reduces legal exposure under data protection and e-communication laws.

How AdSigner Helps You Stay Compliant

Managing legally compliant email signatures across an entire organization manually is inefficient and error-prone. That’s where a solution like AdSigner makes a big difference.

➔ Centralized Management

Update legal disclaimers, privacy links, and banners across your entire organization from one centralized dashboard—ensuring every employee stays compliant.

➔ Dynamic Templates with Legal Support

Create department-specific templates that automatically include required disclaimers or legal text based on role, region, or industry.

➔ Secure Image Hosting

All images, including banners, are hosted by AdSigner—ensuring no bulky attachments are sent with your emails, keeping inboxes clean and compliant.

➔ Controlled Banner Usage

Easily manage which banners are active, for which departments, and ensure all banner content complies with GDPR by using informational, brand-focused banners only.

➔ Audit Trails & Version Control

Keep a history of changes for legal or internal audits, and ensure that all previous versions of signatures are traceable and accountable.

Best Practices for Email Signature Compliance

To sum up, here are a few best practices to follow:

• Include full legal company info in all signatures
• Add a link to your privacy policy
• Standardize signatures across departments
• Use banners for branding, not for direct selling—unless consent is given
• Regularly review and update signatures as regulations or company details change

Conclusion

Email signatures are often underestimated, but they’re a critical part of your compliance strategy. With laws like GDPR requiring transparency and consent in all communications, your signature needs to do more than just look good—it needs to follow the rules.

With AdSigner, you can ensure every email your team sends is not only professional and on-brand, but also compliant and secure.

• Want to make sure your banners and email signatures meet GDPR standards?
• Talk to our team to get started with AdSigner today.
• Let’s help you eliminate signature-related compliance risks - book a demo