Email Marketing Pitfalls: How to Avoid Common Mistakes in 2025

Email marketing pitfalls continue to undermine campaigns in 2025, leading to low open rates, SPAM issues, and wasted budget. At Insight Data, we help suppliers across construction and fenestration avoid these problems with Mailminx: our professional email platform built for compliance, targeting, and results.

1. Your Emails Might Not Be Delivered

Spam filters are stricter than ever. Using personal Gmail or basic bulk tools risks blacklisting your domain. Mailminx includes a built-in SPAM checker, safe-sender routing and authentication that helps your campaigns land in inboxes, not junk folders.

2. You’re Targeting the Wrong Contacts

Buying lists or using outdated data leads to bounce-backs and poor engagement. Insight Data offers live email databases updated in real time, including:

• 15,000+ architects & specifiers
• 12,000+ fenestration professionals

3. You’re Not Tracking Performance

Mailminx tracks who opens your emails, clicks your links and visits your website. These insights feed directly into Salestracker CRM for follow-up, segmentation and future targeting.

4. You’re Missing Consent and GDPR Compliance

Mailminx includes full opt-in and unsubscribe tracking. All emails meet UK GDPR standards and offer clear audit trails for every campaign.

5. You’re Sending Without Strategy

We support clients with content planning, subject line testing and e-zine campaigns that deliver measurable results. Regular campaigns keep you top-of-mind with prospects and customers alike.

Work with Email Experts Who Know Your Industry

Our clients don’t need to guess. We’ve delivered thousands of campaigns across construction, glazing, and building product sectors. If you’re serious about avoiding email marketing pitfalls, contact us today or call 01934 808293.