How to Connect Affinity Publisher with MailerCheck (2026)

Why Connect Affinity Publisher with MailerCheck

Affinity Publisher is a professional desktop publishing application used for creating layouts for print and digital materials, including brochures, magazines, newsletters, and marketing collateral. MailerCheck is an email verification and deliverability tool that validates email addresses and helps ensure your emails reach real inboxes. Connecting these tools is relevant for marketing teams that design email newsletters or promotional materials in Affinity Publisher and need to verify recipient lists before sending through their email service provider.

Teams that produce visually rich email content in Affinity Publisher and export it as HTML for email campaigns benefit from verifying their contact lists through MailerCheck to protect sender reputation and maximize deliverability of their carefully designed content.

What This Integration Does

While Affinity Publisher and MailerCheck serve different stages of the email marketing workflow, connecting them creates a more complete pipeline:

• Design email newsletter layouts and promotional materials in Affinity Publisher, then verify the recipient email list through MailerCheck before sending.
• Use MailerCheck verification results to segment your mailing list, ensuring your Affinity Publisher-designed campaigns only go to verified, deliverable addresses.
• Maintain clean contact databases that protect the deliverability of your professionally designed email content.
• Reduce bounce rates for campaigns featuring complex designs that took significant effort to produce in Affinity Publisher.

Native vs Third-Party Integration

Affinity Publisher and MailerCheck do not have a native integration. Affinity Publisher is a desktop design application without built-in email marketing or list management features, while MailerCheck is a standalone email verification service. There is no direct connection between them.

The practical workflow between these tools is primarily manual or semi-automated. You design your email content in Affinity Publisher, export it, and separately verify your email list through MailerCheck before sending the campaign through an email service provider. Automation platforms like Zapier or Make can automate the MailerCheck verification step for your contact lists, but the Affinity Publisher design work remains a manual creative process.

If you use an email service provider that integrates with both tools (for example, a provider that can import Affinity Publisher HTML templates and also supports MailerCheck for list verification), that platform becomes the connecting layer between your design and verification workflows.

Step-by-Step Setup

Step 1: Design Your Email in Affinity Publisher

Create your email newsletter or campaign layout in Affinity Publisher. Use the application's precise typography, layout tools, and image handling to build a visually compelling design. Keep email design best practices in mind: use a maximum width of 600 to 700 pixels, include alt text for images, and maintain a good text-to-image ratio. When finished, export the design as HTML or as images that can be assembled in your email service provider.

Step 2: Prepare Your Email List

Export your subscriber or contact list from your email service provider, CRM, or database as a CSV file containing email addresses. This is the list you will verify through MailerCheck before sending your Affinity Publisher-designed campaign.

Step 3: Verify with MailerCheck

Log into MailerCheck and navigate to the Verify section. Upload your CSV file containing the email addresses. MailerCheck will process each address and return a status: valid, invalid, risky, disposable, or unknown. Download the results file when processing is complete.

Step 4: Clean Your List

Remove or segment addresses based on MailerCheck's results. At minimum, remove all "invalid" and "disposable" addresses. Consider creating a separate segment for "risky" addresses that you can test with a small send before including them in your main campaign. Import the cleaned list back into your email service provider.

Step 5: Send Your Campaign

Upload or paste your Affinity Publisher HTML design into your email service provider. Select the verified, cleaned list as your recipients. Send a test email to yourself first to verify the design renders correctly across email clients. Once confirmed, schedule or send the campaign to your verified list.

Common Use Cases

• Newsletter campaigns: Design a monthly newsletter in Affinity Publisher with complex layouts and high-quality imagery, then verify the subscriber list through MailerCheck before each send to maintain deliverability.
• Product launch announcements: Create visually rich product launch emails in Affinity Publisher and verify your full contact list through MailerCheck to ensure maximum reach for the announcement.
• Event invitations: Design event invitation emails with RSVP details in Affinity Publisher and verify the guest email list through MailerCheck to reduce bounce rates.
• Re-engagement campaigns: Before sending a re-engagement campaign designed in Affinity Publisher to inactive subscribers, run the list through MailerCheck to remove addresses that have become invalid since they last engaged.
• Print-to-digital adaptation: Adapt print materials designed in Affinity Publisher for email distribution, using MailerCheck to verify the digital contact list before sending.

Tips and Best Practices

• Design for email constraints: While Affinity Publisher supports sophisticated layouts, email clients have limited CSS support. Test your exported HTML in tools like Litmus or Email on Acid to ensure compatibility before sending to your MailerCheck-verified list.
• Verify before every major send: Email addresses decay over time. Run your list through MailerCheck before each significant campaign, especially if it has been more than 30 days since the last verification.
• Use Affinity Publisher's PDF export as a fallback: For subscribers whose email clients may not render HTML well, consider linking to a PDF version of your newsletter exported from Affinity Publisher.
• Optimize images for email: Compress and resize images in Affinity Publisher before exporting for email. Large images slow loading times and may be blocked by email clients.
• Track results to justify the effort: Monitor open rates, click rates, and bounce rates for campaigns using Affinity Publisher designs sent to MailerCheck-verified lists. This data helps demonstrate the value of both professional design and list hygiene.
• Automate list verification: Use Zapier or Make to automatically run your email list through MailerCheck on a scheduled basis, so the list is always clean and ready when you finish a new Affinity Publisher design.