Duplicate MIME issue

Hi Team,

This is Pratik from FunnelKit Support.

We have a mutual customer who is using both Mailster and FunnelKit Automation to send emails. They would like to continue using the email setup configured in Mailster, ensuring it is also applicable to FunnelKit Automations.

However, we have identified an issue: when an email is sent through FunnelKit Automation, an error is recorded in the email logs, as demonstrated here: https://tinyurl.com/2yswawz6.

The problem arises because the email header is being inserted from two different sources—once from FunnelKit Automation and once from Mailster—leading to this error.

Could you please assist us in finding a solution to ensure compatibility and avoid this issue?

We appreciate any suggestions you may have.

Thank you.

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