Title: api connection error
Last modified: September 26, 2019

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# api connection error

 *  Resolved [jhanca09](https://wordpress.org/support/users/jhanca09/)
 * (@jhanca09)
 * [6 years, 8 months ago](https://wordpress.org/support/topic/api-connection-error-2/)
 * Mailchimp returned the following error:
    Service Unavailable. Request: GET [https://us3.api.mailchimp.com/3.0/](https://us3.api.mailchimp.com/3.0/)
   Response: 503 Service Unavailable –
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fapi-connection-error-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * (@hchouhan)
 * [6 years, 8 months ago](https://wordpress.org/support/topic/api-connection-error-2/#post-11972785)
 * Hello,
 * I can confirm that the 503 error definitely means that the IP your hosting provider
   is using to connect to the MailChimp API is blocked by Akamai. This is not something
   we can help with.
 * It does not mean that your own private IP is blocked, it may not even mean that
   your public hosting server IP is blocked, but it does mean that whatever IP your
   hosting provider uses for outbound cURL connections that are made by Apache/PHP
   is blocked. This is often an IP address that you share with multiple clients 
   on your hosting server so it’s possible that another client did something to 
   get the IP blocked, completely out of your control.
 * There are some sites that show risk scores or spam scores for IP addresses, but
   I have not found a site that actually can confirm if an IP is on the Akamai blocklist
   or not, besides your own private IP and that’s not relevant in this case. If 
   you have a way to confirm if an IP is listed in Akamai firewall I would be very
   much interested in that. Note that this is specifically about the Akamai firewall
   not about any other blocklist or risk score.
 * To see what IP your host was using to connect to MailChimp API you can check 
   your MailChimp.com account settings API page, it will show the last 10 successful
   API calls including their source IP.
 * The only possible solutions for this error are:
    – Ask your web host for a new
   hosting IP address. – Migrate to a new web host if your hosting company is unwilling
   to fulfill your request. – Configure your server to connect to the MailChimp 
   API server using a proxy. – Wait for the IP to not be blacklisted, this can take
   a random amount of time and really depends on how/why it got blacklisted in the
   first place
 * Hope that helps. If you have any questions, please let us know!

Viewing 1 replies (of 1 total)

The topic ‘api connection error’ is closed to new replies.

 * ![](https://ps.w.org/mailchimp-for-wp/assets/icon-256x256.png?rev=1224577)
 * [MC4WP: Mailchimp for WordPress](https://wordpress.org/plugins/mailchimp-for-wp/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Harish Chouhan](https://wordpress.org/support/users/hchouhan/)
 * Last activity: [6 years, 8 months ago](https://wordpress.org/support/topic/api-connection-error-2/#post-11972785)
 * Status: resolved