Send Test Email Error in Campaign's Email step: An error occurred, please try again

Task-specific steps

A generic test-email error is commonly caused by invalid merge syntax or address formatting. Diagnose the message content first, then confirm the test contact actually reaches the email action.

1. 1Duplicate the email text into a safe working copy, then inspect every merge field for exactly two opening and two closing braces.
2. 2Replace any unknown or obsolete custom value with a value available from the current custom-values picker. Pay special attention to merge fields inside links.
3. 3Validate the recipient address; punctuation mistakes such as a comma in place of the final period will cause the test to fail.
4. 4Enter a real email address in the From Email field. Put the business or sender name in From Name rather than using plain text where an email address is required.
5. 5Send the simplest plain-text test. If it works, restore one content section at a time until the failing merge field or link is isolated.
6. 6For a workflow email, confirm the test contact meets the trigger and preceding branch conditions, then inspect execution history to see whether the email action was reached.

Feature-specific checks

• One malformed merge value can prevent the entire action from running.
• Email-specific address checks do not apply to SMS, but malformed merge values can break either channel.
• If escalation is necessary, include the workflow or campaign name, test time, contact ID, and exact error without exposing customer data.

Before you begin

“Send Test Email Error in Campaign's Email step: An error occurred, please try again” is part of the Marketing → Email Marketing area in Adaptive AI. Build templates, broadcasts, campaigns, and performance reporting. Email configuration affects deliverability, reputation, consent, and reporting. Test the exact sender, content, links, and recipient state before sending to a real audience. The objective is not merely to save a setting; it is to confirm the result works for the staff member or customer who will depend on it.

• Confirm the sending domain or provider is connected, authenticated, and approved for the From address you plan to use.
• Verify the audience has appropriate consent and exclude unsubscribed, bounced, suppressed, or otherwise restricted recipients.
• Prepare a small internal test segment with multiple mailbox providers and complete contact fields for merge-value testing.
• Review the subject, preview text, sender name, reply-to address, links, fallback values, and required business identification.
• Check whether the email is part of a campaign, workflow, course, invoice, or system notification so you test the correct sending path.

Verify the result

After completing the instructions in this guide, use a controlled test before treating the setup as finished. A saved screen or success message confirms configuration, but only an end-to-end test confirms the business outcome.

1. 1Send to the internal test segment and confirm each mailbox receives the message from the intended sender without broken merge values.
2. 2Open the message on desktop and mobile, then test every link, image, button, reply path, and unsubscribe control.
3. 3Review delivery logs for accepted, delivered, bounced, blocked, complained, opened, and clicked events where available.
4. 4Confirm replies return to the correct inbox and that the related contact conversation or workflow updates as intended.
5. 5Only expand the audience after the test content, recipient filters, timing, and tracking behavior are all correct.

Troubleshooting checklist

If the result differs from what you expected, preserve the current state and isolate one variable at a time. Start with the checks below before deleting the configuration or rebuilding it from scratch.

• Check domain authentication, provider status, From-address alignment, and sending limits when messages are rejected or never leave the queue.
• Review suppression, bounce, complaint, unsubscribe, and invalid-domain status for a recipient-specific delivery failure.
• Use the email log and provider response rather than repeated test sends to identify the exact rejection or deferral reason.
• Confirm merge fields have fallback values and that the test contact contains the data expected by the template.
• Compare campaign or workflow scheduling, account time zone, smart-send rules, and quiet hours when delivery is delayed.

Best practices

• Send relevant content to well-defined segments and avoid sudden volume increases that can damage domain reputation.
• Use one recognizable sender identity, working reply path, accurate subject, and clear unsubscribe option in marketing messages.
• Remove chronically invalid addresses and investigate complaint or bounce spikes before sending the next campaign.
• Keep templates focused, accessible, mobile-readable, and free of unnecessary tracking or image weight.
• Record major sender, domain, audience, and automation changes so deliverability shifts can be traced to a specific event.