Why is MailerSend missing the logs I need to debug?

MailerSend can appear to be “missing” the logs you need for a few common reasons:

1. Retention window is limited

   • Some events/logs are only kept for a short period, so older deliveries or failures may no longer be visible.

2. Not every step is logged in the dashboard

   • You may see delivery status but not the full SMTP/API conversation, validation details, or downstream bounce/complaint context.

3. The message never reached the stage MailerSend logs

   • If the issue happened before MailerSend accepted the email/API request, there may be nothing to show in their logs.

4. Filtering or view scope

   • The dashboard may be showing the wrong environment, domain, date range, or status filter.

5. Webhooks/advanced events aren’t enabled

   • Some debugging data may only be available if event tracking, webhooks, or specific integrations are configured.

6. The failure occurred after MailerSend handed off the email

   • If the recipient server rejected it later, or an intermediate provider altered the result, the dashboard may only show partial info.

What to check

• Confirm the exact message ID / request ID
• Review the date range, domain, and status filters
• Check your API response or SMTP client logs
• Verify webhooks/event tracking are enabled
• Look at the recipient/server side for bounce/deferral details

If you want, I can help you troubleshoot it systematically

Send me:

• whether you’re using API or SMTP
• the exact error
• a sample message ID/request ID
• what you expected to see in the logs

and I’ll help you narrow down why the logs aren’t showing up.