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x97wehner

Mailchimp module issue '503 service unavailable'

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In the last few days, I noticed my back office wasn't operating correctly. It was slow to load almost every page and sometimes popped up timeout errors. After debugging, I found that the Mailchimp module is the culprit. If I disable it, everything flows fine again. After opening the module config, I see it's presenting an error " Server error: `GET https://us11.api.mailchimp.com/3.0/lists` resulted in a `503 Service Unavailable` response:"

Is this happening to anyone else? Does anyone know how to resolve?

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Is your mailchimp account active & functioning correctly? Any recent bills from them that your CC company rejected for some reason? No recently changed passwords or other credentials?

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No, nothing has changed on my end. Logged into Mailchimp and it still shows connected on their side.

 

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Posted (edited)

https://twitter.com/MailChimpStatus

Looks like they have been having issues.  Maybe TBs trying to connect and or send to MC created issues.  Seems like other would report issues though.

 

Looks like its all up now.  try it and see what happens..

Edited by Brent Dacus

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Have you check to see if you are on a Blacklist?

Are you hosted or self managed? 

"Connection refused" or "Connection timed out"

These are firewall issues. Most likely, your webhost is blocking access to the MailChimp API servers.

To fix it, you should ask your webhost for the following URL to be whitelisted:

https://*.api.mailchimp.com

 

403 "Forbidden" or 503 "Service Unavailable"

This means that the IP address that your hosting provider uses for outbound cURL connections made by PHP is blacklisted by the Akamai firewall (because of poor reputation). Akamai is the firewall MailChimp and many other major websites use to protect their servers, which is why this is somewhat harder to fix.

Note that many hosting providers use shared IP addresses, meaning that your website IP is shared with a number of their users. It's possible that another client of your hosting provider did something to get the IP blacklisted, completely out of your control.

When this happens, we recommend you to change your hosting IP address because having a bad reputation at Akamai does not just affect the MailChimp API.

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Posted (edited)

Just turned it back on today and all seems to be working correctly again. Must have been something on their side.

 

Edited by x97wehner

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