How do I improve the deliverability of links sent through Broadcasts?

Last updated: July 6, 2025

When sending Broadcasts through Pylon, tracking parameters are automatically added to URLs to enable engagement tracking. While these parameters are standard, they may occasionally be flagged by security softwares or other email security filters.

Recommendations to Improve Link Deliverability

Here are some steps you can take to improve the deliverability of links in your broadcast messages:

  1. Use a verified custom domain - This is the most effective solution, as it helps establish trust with recipients' security systems and reduces the likelihood of links being flagged.

  2. Simplify URLs - Keep URLs in your message body as clean as possible. Avoid adding additional tracking parameters manually, as this can increase the likelihood of security flags.

  3. Avoid URL shorteners - Skip using URL shortening services or redirects from unfamiliar domains, as these are often scrutinized more heavily by security software.

If recipients are experiencing blocks, they can also whitelist your sending domain in their security software to prevent future issues.