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Unplanned Outage: Simplelists E-list Delivery Outage

Last Updated:
2026-08-07 15:18:53
Event:
2026-08-07 11:21:00
Status:
Closed
Brief Description:
Emails sent from Simplelists to "@cornell.edu" recipient addresses between 11:21am-2:16pm on Friday, August 7, 2026 were not delivered. All other recipients received their messages. See full description for recommendations.
User Impact:
Emails sent from Simplelists to "@cornell.edu" recipient addresses between 11:21am-2:16pm on Friday, August 7, 2026 were not delivered. All other recipients received their messages. Simplelists admins may want to resend messages to "@cornell.edu" recipient addresses that were sent during the outage.
Workaround:
Simplelists admins can determine which mailings were affected by logging in to Simplelists and navigating to Messages > Email Delivery from the menu on the left side of the page. Select Email delivery information. Look for mailings sent during the outage (11:21am-2:16pm on Friday, August 7, 2026).  If there are messages sent during the outage, they were not successfully delivered to "@cornell.edu" addresses. You may want to resend those messages.
Current Status:
Emails sent from Simplelists are being delivered without issue. Simplelists service has been restored since 2:16pm on Friday, August 7, 2026.
Services Affected:
Bulk Email
Subsites Affected:
E-lists (Simplelists)
Full Description:
Emails sent from Simplelists to "@cornell.edu" recipient addresses between 11:21am-2:16pm on Friday, August 7, 2026 were not delivered. All other recipients received their messages. Simplelists admins can determine which mailings were affected by logging in to Simplelists and navigating to Messages > Email Delivery from the menu on the left side of the page. Select Email delivery information. Look for mailings sent during the outage (11:21am-2:16pm on Friday, August 7, 2026).  If there are messages sent during the outage, they were not successfully delivered to "@cornell.edu" addresses. You may want to resend those messages.
CIT TDX ID:
2358201



Timeline of Changes

Description Current Status Date Time
Emails sent from Simplelists to "@cornell.edu" recipient addresses between 11:21am-2:16pm on Friday, August 7, 2026 were not delivered. All other recipients received their messages. Simplelists admins can determine which mailings were affected by logging in to Simplelists and navigating to Messages > Email Delivery from the menu on the left side of the page. Select Email delivery information. Look for mailings sent during the outage (11:21am-2:16pm on Friday, August 7, 2026).  If there are messages sent during the outage, they were not successfully delivered to "@cornell.edu" addresses. You may want to resend those messages.
Emails sent from Simplelists are being delivered without issue. Simplelists service has been restored since 2:16pm on Friday, August 7, 2026.
2026-08-07 15:18:53
Emails sent from Simplelists to "@cornell.edu" recipient addresses between 11:21am-2:16pm on Friday, August 7, 2026 were not delivered. All other recipients received their messages. Simplelists admins can determine which mailings were affected by logging in to Simplelists and navigating to Messages > Email Delivery from the menu on the left side of the page. Select Email delivery information. Look for mailings sent during the outage (11:21am-2:16pm on Friday, August 7, 2026).  If there are messages sent during the outage, they were not successfully delivered to "@cornell.edu" addresses. You may want to resend those messages.
Emails sent from Simplelists are being delivered without issue. Simplelists service has been restored since 2:16pm on Friday, August 7, 2026.
2026-08-07 15:06:00