Title: Failed sends
Last modified: May 6, 2025

---

# Failed sends

 *  [Losi](https://wordpress.org/support/users/losi/)
 * (@losi)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/failed-sends/)
 * We have many failed email send on one of our site. We use FunnelKit with OffloadSES
   and Amazon SES without any issuse on other sites.
 * On this particular site:
    - the AWS account checked (domain verifiacations, email address verifications
      etc.), and everything seems OK.
    - WordPress debug enabled, but no related error founded
    - FunnelKit seems OK too, and doesnt show any error (under FunnelKit, seems 
      all email sended properly, but under OffloadSES, failed sends listed)
    - failed sends are not related to one of the emails, or recepients
 * How can I start resolve this issue?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffailed-sends%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [Delicious Brains Support](https://wordpress.org/support/users/dbisupport/)
 * (@dbisupport)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/failed-sends/#post-18455789)
 * Hi [@losi](https://wordpress.org/support/users/losi/),
 * WP Offload SES Support Team here. Thanks for reaching out with your query! We
   would be happy to assist.
 * We understand you’re experiencing some emails failing to send. Would you be able
   to check the `oses_failures` table in the database and send over the value of
   the “error” column for some of the failures? You may redact any sensitive info.
 * We look forward to hearing from you!
 *  Thread Starter [Losi](https://wordpress.org/support/users/losi/)
 * (@losi)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/failed-sends/#post-18455840)
 * Hi [@dbisupport](https://wordpress.org/support/users/dbisupport/),
 * I appriciate the quick response.
 * I’ve checked the database you mentioned earlier. It seems to me, that most the
   failures comes from the exceeded sending rate limit.
 * >     ```wp-block-code
   >     <column name="job">O:51:"DeliciousBrains\WP_Offload_SES\Queue\Jobs\Email_Job":2:{s:8:"email_id";i:1600;s:10:"subsite_id";i:1;}</column><column name="error">DeliciousBrains\WP_Offload_SES\Aws3\Aws\SesV2\Exception\SesV2Exception : Error executing "SendEmail" on "https://email.eu-central-1.amazonaws.com/v2/email/outbound-emails"; AWS HTTP error: Client error: POST https://email.eu-central-1.amazonaws.com/v2/email/outbound-emails resulted in a 429 Too Many Requests response: {"message":"Maximum sending rate exceeded."} TooManyRequestsException (client): Maximum sending rate exceeded. - {"message":"Maximum sending rate exceeded."}
   >     ```
   > 
 * That’s interesting, because the sending rate limit is 14 email/sec related to
   this SES account, and limited to 10 email/sec in FunnelKit Automation for safety
   purposes by me.
 *  Plugin Support [Delicious Brains Support](https://wordpress.org/support/users/dbisupport/)
 * (@dbisupport)
 * [1 year ago](https://wordpress.org/support/topic/failed-sends/#post-18473875)
 * Hi [@losi](https://wordpress.org/support/users/losi/),
 * Thanks for the update. This error indicates that your site is exceeding the email
   sending rate for your AWS account. WP Offload SES includes an email queue to 
   help stay within your send rate limits, but it seems the rate is still being 
   exceeded. 
 * In this case, kindly ensure you have the latest version of the plugin, as it 
   has a fix related to the AWS SES account rate limit. If you like, you may also
   request an increase in your [AWS SES sending limits](https://aws.amazon.com/ses/extendedaccessrequest/).
 * Please also check if your email processes are sending bursts exceeding your email
   sending rate. You can review when the emails are added to the queue on the plugin’s
   Activity tab.
 * Another thing to check is if multiple sites share the same AWS account, as they’ll
   share this sending rate limit, which can contribute to the issue.
 * Please let us know how it goes for you.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Failed sends’ is closed to new replies.

 * ![](https://ps.w.org/wp-ses/assets/icon-256x256.jpg?rev=2070048)
 * [WP Offload SES Lite](https://wordpress.org/plugins/wp-ses/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-ses/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-ses/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-ses/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-ses/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-ses/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [Delicious Brains Support](https://wordpress.org/support/users/dbisupport/)
 * Last activity: [1 year ago](https://wordpress.org/support/topic/failed-sends/#post-18473875)
 * Status: not resolved