> ## Documentation Index
> Fetch the complete documentation index at: https://moengage.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Self Debugging Email Deliverability Issues

> Self-diagnose email deliverability problems in MoEngage by checking compliance, authentication, volume spikes, engagement metrics, and bounce rates.

The below listed points help you to self-debug email deliverability problems.

* Check if all the **[compliance](https://www.moengage.com/blog/email-compliance/) requirements** are met. Expected results are:
  * SPF, DKIM, DMARC pass
  * DMARC policy \[p=reject]
  * List-Unsubscribe header
  * In-body unsubscribe link
* Check if the **[email setup](/user-guide/campaigns-and-channels/email/getting-started-with-email/email-setup-and-content-validation) is intact**.
* Look for any volume spikes. Expected results are:
  * Consistent volume pattern while looking at week-by-week summary.
  * No unusual volume spike (more than 1x growth compared to the highest volume in the last 30 days) in any day.
  * Less than 10 10-day gap between (high volume) sends.
  * Less than 3 weeks gap in between high volume sends
  * Ramp-up should be as per the plan, if in the ramp-up phase.
* Look for any **unusual target segment** such as inactive users targeting, missing suppressions, or the presence of unusual emails in the list. Expected results are:
  * Optimal active v/s inactive targeting: 70:30.
  * Proper suppressions and frequency capping exclusions.
  * No inactive users (6+ months) in the usual target segment.
* Check if there has been any suspicious sign-up. For example, a sudden spike in welcome campaign volume would be suspicious. Unless there is an activity going on or it’s the peak sale season, there should not be a more than +- 20% difference in the usual welcome campaign volume. Expected results are:
  * No unusual sign-up activity
  * No bot signups
  * No unusual app/site activity
* Check postmaster data for **reputation** at Gmail; check SNDS for IP status at Microsoft. Expected results are:
  * HIGH reputation at Gmail
  * Less than 0.1 % of users reported spam on Gmail
  * Green-filtered results at SNDS
* Check the **performance metrics** for the last 15 days, weekly performance going back 90 days, and monthly performance going back 6 months. Expected results are:
  * More than 99% delivered rate, except for the Welcome campaign or double opt-in campaign.
  * More than 30% unique open rates. Consistent through weeks for each segment group - active, inactive, personalized, triggered, etc.
  * Stable click rate - consistent through weeks for each segment group - active, inactive, personalized, triggered, etc.
  * Low complaint rates (\<0.1%)
  * Low unsubscribe rates (\<0.5%)
  * Consistent conversion rates from week to week for each campaign or segment group.
  * Consistent performance for each triggered campaign or flow campaign.
  * No deferrals.
* Read all the **failure reasons** to see if there were any blocks due to IPs/domains being in block lists or due to low reputation. Expected results are:
  * No soft bounces due to IP/domain blocks or mailbox provider blocks.
* Check the **HTML content**. Expected results are:
  * No personalization failures
  * No distorted or poorly formatted emails
  * No spam-like content
  * Personalized or segmented for each send
  * Light images or videos that load quickly
  * Consistent branding in emails.

After you spot the issues, go into the repair mode, then slowly test and resume sending smaller volumes to the most engaged users at a low RPM and then ramp up.