7 Jun 2012

400,000 MailChimp Customers Affected by US1 Outage

Posted by iwgcr

MailChimp is a personal publishing platform. The service helps the customers to design email newsletters, share them on social networks, track the results. The company has a user base of 1.2 million. On January 2nd 2012, MailChimp  experienced some hardware issues on US1 datacenter. We can learn on MailChimp blog that

For 1/3 of the affected 400k users, we were able to restore things nearly perfectly with no campaign or data loss. So for the others, any campaigns created, or campaigns sent (including all tracking links) between 1am ET and roughly 3pm ET were lost.




Critical Data Lost

2012-01-02 MailChimp 14 hours Yes