Postmark Status — Past Incidents

Past Incidents

MAINTENANCE Scheduled Maintenance
DEGRADED Service Issue
DOWN Service Offline

October 2021
- DEGRADEDService Issue: Outbound sending delays
  Oct 28, 8:11 - 10:27 AMResolved after 2 hoursAffected: API, SMTP (sending)
September 2021
August 2021
July 2021
June 2021
- DEGRADEDService Issue: Outbound sending seeing high bounce rates from Spamhaus
  Jun 7, 10:02 - 10:54 AMResolved after an hourAffected: API, SMTP (sending)
May 2021
- DEGRADEDSending delays to Yahoo hosted email addresses.
  May 27, 3:45 PM - Jun 1, 9:53 AMResolved after 5 daysAffected: API, SMTP (sending)
April 2021
- MAINTENANCEScheduled maintenance at 10pm ET
  Apr 21, 9:53 - 10:36 PMResolved after 43 minutesAffected: API, Web App
March 2021
- MAINTENANCEScheduled maintenance: TLSv1.0 Blackout Testing
  Mar 30, 11:09 AM - 11:07 PMResolved after 12 hoursAffected: API
- DEGRADEDService Issue: Inbound Processing delays
  Mar 23, 12:15 - 3:40 PMResolved after 3 hoursAffected: SMTP (receiving)
February 2021
- DEGRADEDService Issue: Outbound sending. Outbound messages are being accepted and queued
  Feb 24, 3:34 - 3:48 PMResolved after 14 minutesAffected: API, SMTP (sending)
- DEGRADEDService Issue: Outbound sending. Messages are being accepted and sending is delayed.
  Feb 22, 12:45 - 1:36 PMResolved after an hourAffected: API, SMTP (sending)
January 2021
December 2020
- DEGRADEDService Issue: Outbound sending. API Timeouts
  Dec 21, 2020, 10:43 - 11:53 AMResolved after an hourAffected: API
November 2020
- DEGRADEDService Issue: Activity events are delayed
  Nov 30, 2020, 3:17 - 4:01 PMResolved after 44 minutesAffected: Web App
October 2020
- DEGRADEDService Issue: Outbound sending. Messages are being accepted and sending is slightly delayed.
  Oct 29, 2020, 11:30 AM - 1:34 PMResolved after 2 hoursAffected: API, SMTP (sending)
September 2020
August 2020
- DEGRADEDService Issue: Outbound sending. Messages are being accepted and sending is delayed.
  Aug 20, 2020, 2:21 - 3:55 PMResolved after 2 hoursAffected: API, SMTP (sending)
- DEGRADEDService Issue: Activity events are delayed
  Aug 13, 2020, 3:34 - 4:10 PMResolved after 36 minutesAffected: Web App
- DEGRADEDService Issue: Outbound sending. Outbound messages are delayed
  Aug 7, 2020, 5:26 - 6:42 PMResolved after an hourAffected: API, SMTP (sending)
July 2020
- DEGRADEDService Issue: Activity is delayed in showing in the UI/API. Messages are being sent and receiving normally.
  Jul 28, 2020, 4:45 - 10:52 PMResolved after 6 hoursAffected: Web App
- DEGRADEDService Issue: Outbound sending delayed. Messages are being accepted.
  Jul 21, 2020, 9:21 - 9:56 AMResolved after 35 minutesAffected: API, SMTP (sending), Web App
- MAINTENANCEScheduled 2-hour maintenance: All services. Web app unavailable, Outbound/Inbound messages accepted and queued for 30-40 minutes.
  Jul 11, 2020, 10:41 AM - 12:09 PMResolved after an hourAffected: Web App
- DEGRADEDService issue: Web app only. Outbound sending / Inbound processing is not affected
  Jul 6, 2020, 12:06 - 12:18 PMResolved after 13 minutesAffected: Web App
June 2020
- DEGRADEDService Issue: Activity is delayed within UI / API and Webhooks are delayed in firing. Messages are being sent and received.
  Jun 19, 2020, 7:45 AM - 8:04 PMResolved after 12 hoursAffected: API, Web App
- DEGRADEDService Issue: Activity is delayed in showing in the UI / API and Webhooks are delayed in firing. Messages are being sent and receiving normally.
  Jun 18, 2020, 8:52 - 9:21 AMResolved after 30 minutesAffected: Web App
- DEGRADEDService issue: Web app only. Messages are being sent and received
  Jun 16, 2020, 11:41 - 11:56 AMResolved after 15 minutesAffected: Web App
May 2020
- DOWNAPI service issues
  May 28, 2020, 4 - 4:30 AMResolved after 30 minutesAffected: API
April 2020
- DEGRADEDPostmark's web app is currently unavailable, messages are being sent/received.
  Apr 6, 2020, 6:48 - 7:05 PMResolved after 17 minutesAffected: Web App
March 2020
- DEGRADEDWe're investigating an issue with the activity page, message stats and events. Sending and receiving is not affected.
  Mar 26, 2020, 11:39 AM - 2:41 PMResolved after 3 hoursAffected: Web App
- DEGRADEDDelays: Activity Events only. Messages are being sent and received.
  Mar 16, 2020, 10:33 AM - 1:45 PMResolved after 3 hoursAffected: Web App
- DEGRADEDDelays: SMTP outbound sending
  Mar 4, 2020, 12:32 - 12:45 PMResolved after 13 minutesAffected: SMTP (sending)
- DEGRADEDDelays: SMTP outbound sending
  Mar 3, 2020, 4:30 - 5:15 AMResolved after an hourAffected: SMTP (sending)
February 2020
- DEGRADEDAPI Service Issues
  Feb 27, 2020, 10:30 - 10:45 AMResolved after 15 minutesAffected: API
- DEGRADEDAPI Service Issues
  Feb 25, 2020, 12:30 - 1 PMResolved after 30 minutesAffected: API, SMTP (sending)
- DEGRADEDDelays: Domain verification
  Feb 13, 2020, 6 - 6:45 AMResolved after an hourAffected: API, SMTP (sending)
- DOWNAPI service issues
  Feb 11, 2020, 6:24 - 6:42 AMResolved after 19 minutesAffected: API
- DEGRADEDSporadic UI and API errors. Outbound/Inbound messages are being accepted.
  Feb 5, 2020, 6:30 - 6:55 PMResolved after 25 minutesAffected: API, Web App
January 2020
- MAINTENANCEOngoing today: blackout testing for SMTP TLSv1.0 deprecation
  Jan 27, 2020, 10 - 10:50 PMResolved after an hourAffected: SMTP (sending)
- MAINTENANCEOngoing today: blackout testing for SMTP TLSv1.0 deprecation copy
  Jan 27, 9:45 PMResolved after a few secondsAffected: SMTP (sending)
- MAINTENANCEOngoing today: blackout testing for SMTP TLSv1.0 deprecation
  Jan 27, 2020, 6:03 - 7:32 AMResolved after an hourAffected: SMTP (sending)
- DEGRADEDDelays: Analytics, Stats, Delivery Events, and Webhooks. Messages still being sent and received.
  Jan 24, 2020, 9:12 AM - 10:32 PMResolved after 13 hoursAffected: API
December 2019
- DEGRADEDIntermittent service issues: APIs.
  Dec 4, 2019, 1:55 - 2:08 PMResolved after 13 minutesAffected: API
November 2019
- DEGRADEDDelays: SMTP outbound sending
  Nov 22, 2019, 9 - 9:45 AMResolved after an hourAffected: SMTP (sending)
- DEGRADEDDelays: Outbound SMTP messages
  Nov 21, 2019, 1:09 - 1:20 PMResolved after 11 minutesAffected: SMTP (sending)
- DEGRADEDDomain verification delays
  Nov 19, 2019, 5:15 - 6:15 AMResolved after an hourAffected: Web App
- DEGRADEDDelays: Outbound sending via SMTP and API.
  Nov 7, 2019, 12:01 - 12:39 AMResolved after 38 minutesAffected: API, SMTP (sending), Web App
October 2019
- DEGRADEDDegraded Performance: Link tracking. Outbound/Inbound messages are being sent and received normally.
  Oct 31, 2019, 8 AM - 12 PMResolved after 4 hoursAffected: API, SMTP (sending)
- MAINTENANCEPlanned maintenance starting in 15 minutes. Inbound delays for up to 15 minutes. Outbound sending not affected.
  Oct 1, 2019, 8:03 - 8:31 PMResolved after 28 minutesAffected: SMTP (receiving)
September 2019
- DEGRADEDDelays: Outbound sending via SMTP. API sending is not affected.
  Sep 10, 2019, 11:43 - 11:53 AMResolved after 10 minutesAffected: SMTP (sending)
- DEGRADEDExternal Service Issue: Delays to Yahoo, AOL and Verizon domains
  Sep 5, 2019, 9:51 AM - 12:21 PMResolved after 3 hoursAffected: API, SMTP (sending)
- DOWNDelays: Outbound SMTP messages
  Sep 4, 2019, 12:20 - 1:25 PMResolved after an hourAffected: SMTP (sending)
August 2019
- MAINTENANCEPlanned maintenance: Wednesday, August 21 at 8:15pm Eastern Time
  Aug 21, 2019, 7:32 - 8:25 PMResolved after an hourAffected: API
July 2019
- DEGRADEDDelays: Delivery Events in Activity feed only. Sending and processing messages are not affected.
  Jul 24, 2019, 9:25 - 10:24 AMResolved after an hourAffected: Web App
- DEGRADEDDelays: Outbound and Inbound, API: Timeouts
  Jul 3, 2019, 3:21 - 4:45 PMResolved after an hourAffected: API, SMTP (sending), SMTP (receiving), Web App
- DEGRADEDDelays: Inbound Activity feed and Activity Stats display only. Sending and processing messages are not affected.
  Jul 3, 2019, 2:09 - 3:19 PMResolved after an hourAffected: Web App
- DEGRADEDDelays: Outbound SMTP messages and API timeouts
  Jul 3, 2019, 11:07 AM - 12:41 PMResolved after 2 hoursAffected: API, SMTP (sending)
- MAINTENANCEScheduled maintenance: Today July 2nd at 8:15pm EST
  Jul 2, 2019, 2:35 - 8:27 PMResolved after 6 hoursAffected: API
June 2019
- DEGRADEDDelays: Some webhooks. Outbound/Inbound messages are being sent and received.
  Jun 19, 2019, 3:05 - 5:12 PMResolved after 2 hoursAffected: API
May 2019
- DEGRADEDOutbound Activity is Delayed
  May 29, 2019, 6:13 - 7:22 AMResolved after an hourAffected: API, Web App
- DEGRADEDDelays: Inbound processing. Outbound sending via SMTP and API are not affected.
  May 20, 2019, 5:18 - 5:47 AMResolved after 30 minutesAffected: SMTP (receiving)
- DEGRADEDActivity page not available. Outbound/Inbound messages are being sent and received.
  May 15, 2019, 11:46 AM - 2:01 PMResolved after 2 hoursAffected: Web App
- DEGRADEDActivity page not available. Outbound/Inbound messages are being sent and received.
  May 9, 2019, 10:35 AM - 12:14 PMResolved after 2 hoursAffected: Web App
- DEGRADEDThe Activity page is currently unavailable. Message sending and receiving is not affected.
  May 8, 12:40 PM - May 9, 12:42 AM, 2019Resolved after 12 hoursAffected: Web App
- DEGRADEDOpen, click, and delivery events delayed.
  May 3, 2019, 2:01 - 3:41 PMResolved after 2 hoursAffected: API
- DEGRADEDAPI slow response times
  May 1, 2019, 1:38 - 2:36 PMResolved after an hourAffected: API
April 2019
- DEGRADEDDelays: Inbound processing. Outbound sending via SMTP and API are not affected.
  Apr 2, 2019, 12:21 - 12:38 PMResolved after 17 minutesAffected: SMTP (receiving)
March 2019
- DEGRADEDDelays: SMTP outbound sending. API and Inbound are processing immediately.
  Mar 28, 2019, 11:35 AM - 12:34 PMResolved after an hourAffected: SMTP (sending)
- DEGRADEDDelays: Delivery, clicks, open webhooks are delayed. Bounce and inbound webhooks are not affected. Messages are being sent and received.
  Mar 27, 2019, 12:05 - 1:04 PMResolved after an hourAffected: Web App
- DEGRADEDDelays: Outbound sending via SMTP. Inbound messages are being processed right away.
  Mar 26, 2019, 2 - 2:23 PMResolved after 23 minutesAffected: SMTP (sending)
- DEGRADEDDelays: Inbound processing. Outbound messages are being sent.
  Mar 19, 2019, 10:30 - 11:11 AMResolved after 41 minutesAffected: SMTP (receiving)
- DEGRADEDService Issues: Webhooks, open tracking, click tracking, statistics, and credit updates are behind. Message sending is not affected.
  Mar 11, 2019, 10:15 AM - 7:29 PMResolved after 9 hoursAffected: API, Web App
- DEGRADEDDelays: outbound sending. Inbound messages are being processed immediately.
  Mar 11, 2019, 10:12 AM - 2:39 PMResolved after 4 hoursAffected: SMTP (sending)
- MAINTENANCEDelays: Inbound processing. Outbound messages are being sent immediately.
  Mar 1, 2019, 4:43 - 5:07 PMResolved after 24 minutesAffected: SMTP (receiving)
February 2019
- DEGRADEDService issues: Delivery events delayed. Outbound/Inbound messages are being sent and received
  Feb 28, 2019, 7:39 - 9:15 PMResolved after 2 hoursAffected: API
- DEGRADEDDelays: Outbound sending. Inbound messages are not affected.
  Feb 4, 2019, 10:44 - 11:40 AMResolved after an hourAffected: SMTP (sending)
January 2019
- DEGRADEDDelays: Inbound processing and Delivery events. Outbound messages are being sent.
  Jan 22, 2019, 7:48 - 8:06 AMResolved after 18 minutesAffected: API, SMTP (receiving)
December 2018
- DEGRADEDDelays: Delivery events. Outbound messages are being processed and sent immediately.
  Dec 18, 2018, 12:05 - 4:43 PMResolved after 5 hoursAffected: API
- DOWNIntermittent service issues: APIs.
  Dec 3, 2018, 12:57 - 1:11 PMResolved after 14 minutesAffected: API
- DOWNIntermittent service issues: APIs.
  Dec 3, 2018, 10:15 - 10:30 AMResolved after 15 minutesAffected: API
November 2018
- DEGRADEDDelays: Inbound processing. Outbound messages are being sent.
  Nov 23, 2018, 6:38 - 7:13 AMResolved after 36 minutesAffected: SMTP (receiving)
- DEGRADEDExternal Service Issue: Bounces to some GoDaddy domains
  Nov 15, 2018, 1:04 - 11:31 PMResolved after 10 hoursAffected: API, SMTP (sending)
- DEGRADEDWe're currently investigating issues with our link tracking feature.
  Nov 15, 2018, 5:28 - 5:36 AMResolved after 8 minutes
- DEGRADEDDelays: Delivery events. Outbound/Inbound messages are being processed and sent immediately.
  Nov 6, 2018, 2:45 - 3:52 PMResolved after an hour
October 2018
- DEGRADEDDelays: inbound and outbound messages
  Oct 29, 2018, 9 - 10:28 PMResolved after an hour
- DEGRADEDService issue: We're investigating an issue causing some Outbound messages to be sent with no content / body
  Oct 29, 2018, 3:10 - 11:49 PMResolved after 9 hours
- MAINTENANCEScheduled maintenance Friday Oct 26 at 8:30pm Eastern Time. Outbound and Inbound messages will be accepted and queued.
  Oct 26, 2018, 8:09 - 8:55 PMResolved after an hour
- DEGRADEDDelays: Delivery/processed events. Outbound/Inbound messages are being processed and sent immediately.
  Oct 11, 2018, 1:16 - 7:55 PMResolved after 7 hours
- DEGRADEDDelays: Activity events / Open tracking. Outbound/Inbound messages are being processed and sent.
  Oct 9, 2018, 10:57 AM - 7:54 PMResolved after 9 hours
- DEGRADEDDelays: Outbound sending / Activity events / Open tracking. Outbound/Inbound messages are being accepted and queued
  Oct 9, 2018, 10:57 AM - 1:33 PMResolved after 3 hours
- DEGRADEDService Issue: Delivery events delayed. Outbound/Inbound messages are being sent and processed immediately
  Oct 4, 2018, 11:28 AM - 12:23 PMResolved after an hour
- DEGRADEDDelays: Outbound Sending / Inbound Processing / Open tracking Events. Messages are being accepted and queued
  Oct 1, 2018, 11:32 AM - 1:26 PMResolved after 2 hours
September 2018
- DEGRADEDService issue: Webhooks. Outbound and Inbound messages are being sent an processed
  Sep 27, 2018, 7:16 - 7:47 PMResolved after 31 minutes
- DEGRADEDDelays: Delivery events. Messages are being sent and received.
  Sep 26, 2018, 11:59 AM - 8:19 PMResolved after 8 hours
- DEGRADEDService issues: Open tracking. Messages are being processed.
  Sep 25, 2018, 11:48 AM - 12:15 PMResolved after 27 minutes
- DEGRADEDOutbound sending delays
  Sep 20, 2018, 1:03 - 1:10 PMResolved after 7 minutes
- MAINTENANCE[UPDATED] Planned maintenance: September 11, 2018 at 10:00pm ET
  Sep 11, 2018, 5:09 - 10:38 PMResolved after 5 hours
- DEGRADEDActivity events delayed
  Sep 11, 2018, 12:49 - 7:03 PMResolved after 6 hours
- DEGRADEDOutbound sending delays
  Sep 11, 2018, 11:21 AM - 12:37 PMResolved after an hour
- DEGRADED[Updated] Stats are currently out of date
  Sep 10, 2018, 2:58 - 6:08 PMResolved after 3 hours
- DEGRADEDActivity events and webhooks are currently delayed, and Inbound messages are also slightly behind.
  Sep 10, 2018, 10:29 AM - 12:47 PMResolved after 2 hours
- DEGRADEDOutbound and Inbound messages are delayed again
  Sep 6, 2018, 11:43 AM - 12:26 PMResolved after 43 minutes
- DEGRADEDOutbound sending delays
  Sep 6, 2018, 6:09 - 11:08 AMResolved after 5 hours
- DEGRADEDInbound messages and webhooks are delayed
  Sep 5, 2018, 11:38 AM - 2:05 PMResolved after 2 hours
- DEGRADEDEmails sent using templates delayed
  Sep 4, 2018, 2:15 - 2:56 PMResolved after 41 minutes
- DEGRADEDInbound processing delays
  Sep 2, 2018, 3:58 - 4:53 PMResolved after an hour

Past Incidents

DEGRADEDService Issue: Outbound sending delays

DEGRADEDService Issue: Outbound sending seeing high bounce rates from Spamhaus

DEGRADEDSending delays to Yahoo hosted email addresses.

MAINTENANCEScheduled maintenance at 10pm ET

MAINTENANCEScheduled maintenance: TLSv1.0 Blackout Testing

DEGRADEDService Issue: Inbound Processing delays

DEGRADEDService Issue: Outbound sending. Outbound messages are being accepted and queued

DEGRADEDService Issue: Outbound sending. Messages are being accepted and sending is delayed.

DEGRADEDService Issue: Outbound sending. API Timeouts

DEGRADEDService Issue: Activity events are delayed

DEGRADEDService Issue: Outbound sending. Messages are being accepted and sending is slightly delayed.

DEGRADEDService Issue: Outbound sending. Messages are being accepted and sending is delayed.

DEGRADEDService Issue: Activity events are delayed

DEGRADEDService Issue: Outbound sending. Outbound messages are delayed

DEGRADEDService Issue: Activity is delayed in showing in the UI/API. Messages are being sent and receiving normally.

DEGRADEDService Issue: Outbound sending delayed. Messages are being accepted.

MAINTENANCEScheduled 2-hour maintenance: All services. Web app unavailable, Outbound/Inbound messages accepted and queued for 30-40 minutes.

DEGRADEDService issue: Web app only. Outbound sending / Inbound processing is not affected

DEGRADEDService Issue: Activity is delayed within UI / API and Webhooks are delayed in firing. Messages are being sent and received.

DEGRADEDService Issue: Activity is delayed in showing in the UI / API and Webhooks are delayed in firing. Messages are being sent and receiving normally.

DEGRADEDService issue: Web app only. Messages are being sent and received

DOWNAPI service issues

DEGRADEDPostmark's web app is currently unavailable, messages are being sent/received.

DEGRADEDWe're investigating an issue with the activity page, message stats and events. Sending and receiving is not affected.

DEGRADEDDelays: Activity Events only. Messages are being sent and received.

DEGRADEDDelays: SMTP outbound sending

DEGRADEDDelays: SMTP outbound sending

DEGRADEDAPI Service Issues

DEGRADEDAPI Service Issues

DEGRADEDDelays: Domain verification

DOWNAPI service issues

DEGRADEDSporadic UI and API errors. Outbound/Inbound messages are being accepted.

MAINTENANCEOngoing today: blackout testing for SMTP TLSv1.0 deprecation

MAINTENANCEOngoing today: blackout testing for SMTP TLSv1.0 deprecation copy

MAINTENANCEOngoing today: blackout testing for SMTP TLSv1.0 deprecation

DEGRADEDDelays: Analytics, Stats, Delivery Events, and Webhooks. Messages still being sent and received.

DEGRADEDIntermittent service issues: APIs.

DEGRADEDDelays: SMTP outbound sending

DEGRADEDDelays: Outbound SMTP messages

DEGRADEDDomain verification delays

DEGRADEDDelays: Outbound sending via SMTP and API.

DEGRADEDDegraded Performance: Link tracking. Outbound/Inbound messages are being sent and received normally.

MAINTENANCEPlanned maintenance starting in 15 minutes. Inbound delays for up to 15 minutes. Outbound sending not affected.

DEGRADEDDelays: Outbound sending via SMTP. API sending is not affected.

DEGRADEDExternal Service Issue: Delays to Yahoo, AOL and Verizon domains

DOWNDelays: Outbound SMTP messages

MAINTENANCEPlanned maintenance: Wednesday, August 21 at 8:15pm Eastern Time

DEGRADEDDelays: Delivery Events in Activity feed only. Sending and processing messages are not affected.

DEGRADEDDelays: Outbound and Inbound, API: Timeouts

DEGRADEDDelays: Inbound Activity feed and Activity Stats display only. Sending and processing messages are not affected.

DEGRADEDDelays: Outbound SMTP messages and API timeouts

MAINTENANCEScheduled maintenance: Today July 2nd at 8:15pm EST

DEGRADEDDelays: Some webhooks. Outbound/Inbound messages are being sent and received.

DEGRADEDOutbound Activity is Delayed

DEGRADEDDelays: Inbound processing. Outbound sending via SMTP and API are not affected.

DEGRADEDActivity page not available. Outbound/Inbound messages are being sent and received.

DEGRADEDActivity page not available. Outbound/Inbound messages are being sent and received.

DEGRADEDThe Activity page is currently unavailable. Message sending and receiving is not affected.

DEGRADEDOpen, click, and delivery events delayed.

DEGRADEDAPI slow response times

DEGRADEDDelays: Inbound processing. Outbound sending via SMTP and API are not affected.

DEGRADEDDelays: SMTP outbound sending. API and Inbound are processing immediately.

DEGRADEDDelays: Delivery, clicks, open webhooks are delayed. Bounce and inbound webhooks are not affected. Messages are being sent and received.

DEGRADEDDelays: Outbound sending via SMTP. Inbound messages are being processed right away.

DEGRADEDDelays: Inbound processing. Outbound messages are being sent.

DEGRADEDService Issues: Webhooks, open tracking, click tracking, statistics, and credit updates are behind. Message sending is not affected.

DEGRADEDDelays: outbound sending. Inbound messages are being processed immediately.

MAINTENANCEDelays: Inbound processing. Outbound messages are being sent immediately.

DEGRADEDService issues: Delivery events delayed. Outbound/Inbound messages are being sent and received

DEGRADEDDelays: Outbound sending. Inbound messages are not affected.

DEGRADEDDelays: Inbound processing and Delivery events. Outbound messages are being sent.

DEGRADEDDelays: Delivery events. Outbound messages are being processed and sent immediately.

DOWNIntermittent service issues: APIs.

DOWNIntermittent service issues: APIs.

DEGRADEDDelays: Inbound processing. Outbound messages are being sent.

DEGRADEDExternal Service Issue: Bounces to some GoDaddy domains

DEGRADEDWe're currently investigating issues with our link tracking feature.

DEGRADEDDelays: Delivery events. Outbound/Inbound messages are being processed and sent immediately.

DEGRADEDDelays: inbound and outbound messages