MailChimp Outage History
MailChimp is up right nowPingoru has recorded 32 incidents for MailChimp: 29 in the last 12 months and 8 in the last 90 days.
Incidents, newest first
Minor October 29, 2026 Access Issues and Errors Across Mailchimp –
Started Oct 29, 2026, 12:19 AM UTC· resolved Oct 29, 2026, 12:19 AM UTC
- resolved Oct 29, 2026, 12:19 AM UTC
Issues preventing access to some pages across Mailchimp, such as the ability to open or edit campaigns, or access the Audience page have been resolved. If you're still experiencing issues, please refresh or clear cache.
Minor October 27, 2026 Access Issues and Errors Across Mailchimp 1d 2h
Started Oct 27, 2026, 03:30 PM UTC· resolved Oct 28, 2026, 06:26 PM UTC
- investigating Oct 27, 2026, 03:30 PM UTC
We are investigating an issue impacting accounts based in Australia, causing errors when editing or duplicating campaigns. Our engineering team is actively working to resolve the problem, and we will share updates as soon as they are available.
- investigating Oct 28, 2026, 08:30 AM UTC
We are investigating access issues and errors across Mailchimp. Our engineering team is actively working to resolve the problem, and we will share updates as soon as they are available.
- investigating Oct 28, 2026, 05:28 PM UTC
We're aware of an issue causing access or campaign editing issues for some Mailchimp users. If you're still experiencing issues, please try refreshing the page or closing and reopening Mailchimp, as this may help. Our engineers continue to work diligently on a resolution. Thank you for your patience.
- resolved Oct 28, 2026, 06:26 PM UTC
Issues preventing access to some pages across Mailchimp, such as the ability to open or edit campaigns, or access the Audience page have been resolved. If you're still experiencing issues, please refresh or clear cache.
Minor October 9, 2026 Cropped Images Disappearing in Campaigns 10d 12h
Started Oct 09, 2026, 08:30 PM UTC· resolved Oct 20, 2026, 08:55 AM UTC
- investigating Oct 09, 2026, 08:30 PM UTC
We are currently aware of and investigating an issue with cropped images disappearing after selecting "Done". At this time, we are recommending editing images outside of Mailchimp, and then uploading the edited image. Our Engineering team is working on a resolution and we will provide further updates as they become available.
- resolved Oct 20, 2026, 08:55 AM UTC
Our Engineering team has resolved the issue with cropped images disappearing after selecting "Done". Thank you for your patience.
Minor September 17, 2026 Delayed Deliveries via Mandrill 38m
Started Sep 17, 2026, 11:31 PM UTC· resolved Sep 18, 2026, 12:09 AM UTC
- resolved Sep 18, 2026, 12:09 AM UTC
The cause of the delayed deliveries has been mitigated. Thanks for your patience while we resolved this matter and please contact Support if you have any additional questions.
Minor September 15, 2026 Delayed Deliveries via Mandrill 4h 26m
Started Sep 15, 2026, 01:36 PM UTC· resolved Sep 15, 2026, 06:02 PM UTC
- resolved Sep 15, 2026, 06:02 PM UTC
All backlogged messages have now processed and the cause of the delayed deliveries has been mitigated. Thanks for your patience while we resolved this matter and please contact Support if you have any additional questions.
Minor September 11, 2026 Delayed updates to All Contacts table 2h 37m
Started Sep 11, 2026, 03:08 PM UTC· resolved Sep 11, 2026, 05:45 PM UTC
- resolved Sep 11, 2026, 05:45 PM UTC
Engineers have fixed the issue that was causing delays with Audience updates and the All Contacts table. We thank you for your patience.
Minor September 1, 2026 Mandrill/Transactional Delays 4h 8m
Started Sep 01, 2026, 04:19 PM UTC· resolved Sep 01, 2026, 08:27 PM UTC
- resolved Sep 01, 2026, 08:27 PM UTC
Engineers have addressed the issue that was causing sending delays with select Mandril/Transactional accounts. Sends are going out. We thank you for your patience.
Minor August 13, 2026 Campaign links resulting in "500" errors. –
Started Aug 13, 2026, 03:20 PM UTC· resolved Aug 13, 2026, 03:20 PM UTC
- resolved Aug 13, 2026, 03:20 PM UTC
At approximately 10am EST, we began receiving reports of links in Campaigns resulting in "500" errors. A fix was deployed and has since been resolved.
Minor August 4, 2026 Campaign Click Tracking Issue 90d 8h
Started Aug 04, 2026, 04:34 PM UTC· resolved Nov 03, 2026, 01:01 AM UTC
- investigating Aug 04, 2026, 04:34 PM UTC
We have identified and resolved an issue due to campaign links not being tracked correctly. Tracking has been fully restored; however, click tracking during the affected window (starting around 11:00 AM EST on August 3rd to 12:00 PM EST on August 4th) cannot be backfilled. This will impact areas such as campaign reporting sent during this window. We sincerely apologize for the inconvenience.
Minor August 4, 2026 Campaign Reports Page Displays 0% Opens and Clicks 1h 49m
Started Aug 04, 2026, 02:10 PM UTC· resolved Aug 04, 2026, 03:59 PM UTC
- resolved Aug 04, 2026, 03:59 PM UTC
Our Engineering team has resolved the reporting issues with All Campaigns Page showing 0% Opens and Clicks. Thank you for your patience.
Minor July 22, 2026 Issue with Contacts Entering Mailchimp Flow Automations 103d 11h
Started Jul 22, 2026, 01:37 PM UTC· resolved Nov 03, 2026, 01:01 AM UTC
- investigating Jul 22, 2026, 01:37 PM UTC
We are currently aware of and investigating an issue with contacts not entering Flow Automations after signup for a subset of Mailchimp accounts. Our Engineering team is working on a resolution and we will provide further updates as they become available.
- investigating Jul 22, 2026, 01:57 PM UTC
Engineers have resolved the issue with the subset of Mailchimp accounts that experienced contacts not entering Flow Automations after signup. We thank you for your patience.
Minor June 24, 2026 Mailchimp Transactional Errors 5h 22m
Started Jun 24, 2026, 01:26 PM UTC· resolved Jun 24, 2026, 06:48 PM UTC
- resolved Jun 24, 2026, 06:48 PM UTC
Engineers have resolved the issue with Mailchimp Transactional (formerly Mandrill) connectivity issues and sending delays. We thank you for your patience.
Minor June 23, 2026 Mailchimp Transactional Errors 3h 51m
Started Jun 23, 2026, 01:52 PM UTC· resolved Jun 23, 2026, 05:43 PM UTC
- resolved Jun 23, 2026, 05:43 PM UTC
Engineers have resolved the issue with Mailchimp Transactional (formerly Mandrill) connectivity issues and sending delays. We thank you for your patience.
Minor June 3, 2026 Google Service Disruption 12h 27m
Started Jun 03, 2026, 10:18 AM UTC· resolved Jun 03, 2026, 10:45 PM UTC
- resolved Jun 03, 2026, 10:45 PM UTC
All services that were impacted by the Google outage are fully operational.
Minor May 14, 2026 Contact count discrepancies 3h 31m
Started May 14, 2026, 03:58 PM UTC· resolved May 14, 2026, 07:29 PM UTC
- resolved May 14, 2026, 07:29 PM UTC
Engineers have resolved an issue preventing changes in contact counts from updating on the Audience Analytics page and Homepage. Contacts added or removed during May 7–13 were recorded correctly. However, reporting for contact count changes during this period is unavailable, so charts and trend indicators may not reflect increases or decreases accurately.
Minor May 8, 2026 Mailchimp Transactional API - Intermittent SSL Errors –
Started May 08, 2026, 07:10 PM UTC· resolved May 08, 2026, 07:10 PM UTC
- resolved May 08, 2026, 07:10 PM UTC
Earlier today, the Mailchimp Transactional API was intermittently returning SSL errors between 10:45 AM – 12:10 PM PT, during which a subset of customers saw intermittent failures for their API requests.
Minor May 8, 2026 Campaigns Stuck Sending 1h 24m
Started May 08, 2026, 06:15 PM UTC· resolved May 08, 2026, 07:39 PM UTC
- resolved May 08, 2026, 07:39 PM UTC
We have identified and resolved the issue affecting campaign delivery and service is now operating normally. We appreciate your patience.
Minor May 1, 2026 Issues with Segmenting 1h 53m
Started May 01, 2026, 02:59 PM UTC· resolved May 01, 2026, 04:52 PM UTC
- resolved May 01, 2026, 04:52 PM UTC
Our Engineering team has resolved the issue with Segmentation and sending of new Campaigns. Thank you for your patience.
Minor April 30, 2026 Exports stuck and/or failing to complete 1d
Started Apr 30, 2026, 03:11 PM UTC· resolved May 01, 2026, 03:47 PM UTC
- resolved May 01, 2026, 03:47 PM UTC
Issues affecting stuck Exports have been resolved. Thank you for your patience in this matter.
Minor April 28, 2026 Segmenting and Campaign Builder Checklist Issues 2h 9m
Started Apr 28, 2026, 03:50 PM UTC· resolved Apr 28, 2026, 05:59 PM UTC
- resolved Apr 28, 2026, 05:59 PM UTC
Our Engineering team has resolved the issue with Segmentation and sending of new Campaigns. Thank you for your patience.
Minor April 27, 2026 eepUrl Shortening Issues 6h 5m
Started Apr 27, 2026, 11:54 AM UTC· resolved Apr 27, 2026, 05:59 PM UTC
- resolved Apr 27, 2026, 05:59 PM UTC
Our team has resolved the issue with eepUrls and all affected URLs are now fixed. Thank you for your patience.
Minor April 24, 2026 Campaigns Stuck Sending 1h 46m
Started Apr 24, 2026, 03:55 PM UTC· resolved Apr 24, 2026, 05:41 PM UTC
- resolved Apr 24, 2026, 05:41 PM UTC
We have identified and resolved the issue affecting campaign delivery and the visual sending status discrepancy. Service is now operating normally. We appreciate your patience.
Minor April 14, 2026 Campaigns not sending as expected 18h 37m
Started Apr 14, 2026, 06:11 PM UTC· resolved Apr 15, 2026, 12:48 PM UTC
- resolved Apr 15, 2026, 12:48 PM UTC
We have identified and resolved the issue affecting campaign delivery. Service is now operating normally. We appreciate your patience.
Minor March 25, 2026 Campaigns stuck in Preparing/Sending 1h 5m
Started Mar 25, 2026, 03:29 PM UTC· resolved Mar 25, 2026, 04:34 PM UTC
- resolved Mar 25, 2026, 04:34 PM UTC
Our Engineering team has resolved the issues with Campaigns stuck in a Preparing/Sending status. Thank you for your patience.
Minor March 2, 2026 Application Maintenance 2h 59m
Started Mar 02, 2026, 05:00 PM UTC· resolved Mar 02, 2026, 07:59 PM UTC
- resolved Mar 02, 2026, 07:59 PM UTC
Application maintenance is complete and performance is fully restored. Thank you for your patience while our team worked through updates.