- Detected by Pingoru
- May 04, 2026, 07:04 PM UTC
- Resolved
- May 04, 2026, 10:29 PM UTC
- Duration
- 3h 25m
Affected: Email sending (SMTP service)
Timeline · 2 updates
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investigating May 04, 2026, 07:04 PM UTC
Degraded performance of US inbound servers is causing processing delays, intermittent timeouts and incorrect "421 Too many concurrent SMTP connections from this IP address; please try again later." errors. This is isolated to US-based servers. If you are experiencing any of these issues, please try changing the server name to mail-eu.smtp2go.com until further notice.
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resolved May 04, 2026, 10:29 PM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Apr 30, 2026, 06:25 AM UTC
- Resolved
- Apr 30, 2026, 08:35 AM UTC
- Duration
- 2h 9m
Affected: Email sending (SMTP service)
Timeline · 2 updates
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identified Apr 30, 2026, 06:25 AM UTC
Some users may experience delays and see "Processed" emails on their Activity feed. Our developers have identified the issue and are implementing a fix.
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resolved Apr 30, 2026, 08:35 AM UTC
This incident has now been resolved. New emails should flow as normal. Previously processed emails may take a little longer to update.
Read the full incident report →
- Detected by Pingoru
- Apr 30, 2026, 03:35 AM UTC
- Resolved
- Apr 30, 2026, 05:17 AM UTC
- Duration
- 1h 42m
Affected: Email sending (SMTP service)
Timeline · 3 updates
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investigating Apr 30, 2026, 03:35 AM UTC
We are aware of an issue where some emails are currently stuck in the "Processed" status. Our team is actively taking steps to resolve the issue as quickly as possible.
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monitoring Apr 30, 2026, 04:00 AM UTC
A fix has been deployed and we're continuing to monitor the situation. We are seeing email queues begin to clear and expect all delayed messages to be delivered shortly. Thank you for your patience, and we apologise for the inconvenience.
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resolved Apr 30, 2026, 05:17 AM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Apr 15, 2026, 04:26 PM UTC
- Resolved
- Apr 15, 2026, 05:23 PM UTC
- Duration
- 56m
Affected: Email sending (SMTP service)
Timeline · 2 updates
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investigating Apr 15, 2026, 04:26 PM UTC
Our development team is currently investigating the inbound mail servers, which are experiencing an unusually high volume of traffic. Users may encounter delays in message delivery while we work to identify the root cause and restore normal performance.
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resolved Apr 15, 2026, 05:23 PM UTC
Our development team has resolved the incident. Please allow some time for the backlog to clear.
Read the full incident report →
- Detected by Pingoru
- Mar 31, 2026, 11:08 PM UTC
- Resolved
- Apr 01, 2026, 09:53 AM UTC
- Duration
- 10h 44m
Affected: Email sending (SMTP service)
Timeline · 5 updates
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investigating Mar 31, 2026, 11:08 PM UTC
We are investigating an issue causing delays in email delivery in the AU region. These emails will appear as "Processed" on the "Reports > Activity" page. Our engineering team is currently working to identify the root cause and restore normal processing speeds as quickly as possible.
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identified Mar 31, 2026, 11:58 PM UTC
The issue has been identified, and a fix is being implemented.
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identified Apr 01, 2026, 02:09 AM UTC
A preliminary fix is being implemented and the backlog of processed email is being worked through.
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monitoring Apr 01, 2026, 05:28 AM UTC
A resolution has been implemented and we're continuing to monitor. While the backlog of "Processed" emails is clearing, clients may notice a temporary delay in event updates (such as the "Delivered" status) appearing in the Activity page reporting. These records are being processed and will be fully updated shortly.
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resolved Apr 01, 2026, 09:53 AM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Mar 02, 2026, 05:00 PM UTC
- Resolved
- Mar 03, 2026, 12:08 AM UTC
- Duration
- 7h 8m
Affected: Email sending (SMTP service)
Timeline · 3 updates
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investigating Mar 02, 2026, 05:00 PM UTC
We are investigating a system-wide outage. Users may experience connectivity issues. Please try connecting to mail-us.smtp2go.com or mail-eu.smtp2go.com in the meantime.
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monitoring Mar 02, 2026, 10:36 PM UTC
A fix has been implemented, and we are continuing to monitor.
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resolved Mar 03, 2026, 12:08 AM UTC
This incident is now resolved. We apologize for any inconvenience encountered. If you experience issues connecting to our servers, please reach out to our support team for further assistance.
Read the full incident report →
- Detected by Pingoru
- Feb 26, 2026, 03:01 AM UTC
- Resolved
- Feb 27, 2026, 03:08 AM UTC
- Duration
- 1d
Affected: Email sending (SMTP service)API Servers
Timeline · 2 updates
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monitoring Feb 26, 2026, 03:01 AM UTC
We are currently aware of a global issue affecting emails sent to Microsoft-hosted domains (such as hotmail.com, outlook.com, live.com, etc.). Emails affected will show as "Processed" on the "Reports > Activity" page, and delivery attempts encounter "451 4.7.650……….." responses. This is a Microsoft-wide issue affecting multiple SMTP providers/ESPs, and we are monitoring it closely as they actively work on a fix. Thanks for your patience.
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resolved Feb 27, 2026, 03:08 AM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Feb 13, 2026, 02:36 PM UTC
- Resolved
- Feb 14, 2026, 04:10 AM UTC
- Duration
- 13h 34m
Affected: Member Dashboard
Timeline · 2 updates
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identified Feb 13, 2026, 02:36 PM UTC
We have identified an issue with headers for sent messages not displaying in the Activity page. We are investigating and will update.
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resolved Feb 14, 2026, 04:10 AM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Feb 08, 2026, 11:57 PM UTC
- Resolved
- Feb 09, 2026, 02:51 AM UTC
- Duration
- 2h 53m
Affected: Email sending (SMTP service)
Timeline · 2 updates
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identified Feb 08, 2026, 11:57 PM UTC
Some customers may experience intermittent connection failures when connecting to "mail-au.smtp2go.com". Our development team has identified the issue and is taking corrective action to restore full stability as quickly as possible. Recommended Action: While we resolve this, you can maintain a stable connection by switching your SMTP server address to "mail.smtp2go.com".
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resolved Feb 09, 2026, 02:51 AM UTC
This issue has now been resolved, and services are operating normally. We apologise for any inconvenience this may have caused. If you continue to experience any connection failures when connecting to "mail-au.smtp2go.com", please reach out to our support team for assistance.
Read the full incident report →
- Detected by Pingoru
- Jan 22, 2026, 07:44 PM UTC
- Resolved
- Jan 24, 2026, 12:26 AM UTC
- Duration
- 1d 4h
Affected: Email sending (SMTP service)
Timeline · 3 updates
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investigating Jan 22, 2026, 07:44 PM UTC
We are currently investigating an issue affecting the mail servers. During this time, users may experience delays in email delivery.
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identified Jan 22, 2026, 08:02 PM UTC
Our team has identified a global service outage affecting Microsoft. As a result, outbound emails to Microsoft-hosted domains may be delayed. We are securely holding affected messages and will continue to automatically re-attempt delivery until Microsoft resolves the issue.
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resolved Jan 24, 2026, 12:26 AM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Jan 20, 2026, 03:27 PM UTC
- Resolved
- Jan 21, 2026, 03:57 AM UTC
- Duration
- 12h 29m
Affected: SMTP2GO Website
Timeline · 3 updates
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investigating Jan 20, 2026, 03:27 PM UTC
Some customers are experiencing issues loading the SMTP2GO login page. Please try logging in at https://app-us.smtp2go.com/login/ while we investigate this issue
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investigating Jan 20, 2026, 04:08 PM UTC
We are continuing to investigate this issue. If you cannot log in, please try using: https://app-us.smtp2go.com/login/
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resolved Jan 21, 2026, 03:57 AM UTC
This issue was caused by network instability at Akamai/Linode datacenters in the EU. This has now been resolved as per their bulletin on the issue.
Read the full incident report →
- Detected by Pingoru
- Jan 12, 2026, 03:33 PM UTC
- Resolved
- Jan 12, 2026, 06:11 PM UTC
- Duration
- 2h 38m
Affected: API Servers
Timeline · 2 updates
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investigating Jan 12, 2026, 03:33 PM UTC
We’re aware of an API issue when calling api.smtp2go.com/v3/email/send endpoint and the server is sending back an HTTP status Code 500 for certain emails. Our development team is investigating.
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resolved Jan 12, 2026, 06:11 PM UTC
The underlying service the API uses to send emails had an intermittent fault, causing some communication issues between the services. This issue has now been resolved.
Read the full incident report →
- Detected by Pingoru
- Dec 11, 2025, 07:39 AM UTC
- Resolved
- Dec 11, 2025, 07:53 AM UTC
- Duration
- 14m
Affected: Email sending (SMTP service)API ServersSMS Messaging
Timeline · 2 updates
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investigating Dec 11, 2025, 07:39 AM UTC
A current issue with connectivity is being investigated. Updates will be provided when available.
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resolved Dec 11, 2025, 07:53 AM UTC
This incident has been resolved. It appears to be related to a recent database configuration change. Further investigations will take place to ensure stability and to prevent such an incident from happening again.
Read the full incident report →
- Detected by Pingoru
- Nov 13, 2025, 03:40 PM UTC
- Resolved
- Nov 13, 2025, 11:28 PM UTC
- Duration
- 7h 47m
Affected: Member Dashboard
Timeline · 3 updates
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investigating Nov 13, 2025, 03:40 PM UTC
Some users may be experiencing issues with subaccount management. Our team is currently investigating an error affecting the ability to share verified senders between master accounts and their associated subaccounts.
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monitoring Nov 13, 2025, 09:48 PM UTC
A fix has been implemented, and we're continuing to monitor. If you encounter any further issues granting subaccounts access to verified sender domains, please reach out to our support team.
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resolved Nov 13, 2025, 11:28 PM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Nov 05, 2025, 02:47 PM UTC
- Resolved
- Nov 13, 2025, 06:34 AM UTC
- Duration
- 7d 15h
Affected: Email sending (SMTP service)
Timeline · 3 updates
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investigating Nov 05, 2025, 02:47 PM UTC
We have identified some greylisting issues with Microsoft/Outlook and Yahoo and are actively working on solutions to mitigate the slowed delivery.
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monitoring Nov 06, 2025, 03:01 AM UTC
A fix has been implemented and we are monitoring the results.
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resolved Nov 13, 2025, 06:34 AM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Oct 21, 2025, 02:04 AM UTC
- Resolved
- Oct 21, 2025, 12:20 PM UTC
- Duration
- 10h 16m
Affected: Member Dashboard
Timeline · 3 updates
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identified Oct 21, 2025, 02:04 AM UTC
We are currently investigating a reporting delay that may affect some users in the AU region. Please note that email delivery is unaffected and messages are sending successfully. However, emails on your Activity reporting page may be temporarily stuck at the "Processed" status, even though they have already been delivered to the recipient. Our team is actively working on a fix for this delay in reporting events and is closely monitoring the results.
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monitoring Oct 21, 2025, 03:00 AM UTC
The backlog of delayed reporting events is now clearing, and we are continuing to monitor the system closely.
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resolved Oct 21, 2025, 12:20 PM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Oct 09, 2025, 02:46 PM UTC
- Resolved
- Oct 09, 2025, 10:46 PM UTC
- Duration
- 7h 59m
Affected: Member Dashboard
Timeline · 2 updates
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monitoring Oct 09, 2025, 02:46 PM UTC
Some users may observe that their activity reports include messages marked as “processed,” even though these messages have already been successfully delivered. Our team is working on a fix and actively monitoring the results.
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resolved Oct 09, 2025, 10:46 PM UTC
This issue has been resolved. While email delivery remained fully unaffected throughout the incident, we are aware that some emails sent during this time may not reflect the "Delivered" status in the reporting. We apologise for the inconvenience encountered due to this. If you have any questions regarding the status of specific emails, please reach out to our support team.
Read the full incident report →
- Detected by Pingoru
- Oct 01, 2025, 01:45 AM UTC
- Resolved
- Oct 01, 2025, 08:59 AM UTC
- Duration
- 7h 14m
Affected: Email sending (SMTP service)
Timeline · 4 updates
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identified Oct 01, 2025, 01:45 AM UTC
We've identified the cause of recent email delivery delays in the AU region. Our team is currently implementing a fix, and the backlog of emails should begin clearing shortly. We apologize for any inconvenience this may have caused.
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monitoring Oct 01, 2025, 02:19 AM UTC
The email backlogs are clearing, and we are continuing to monitor.
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monitoring Oct 01, 2025, 03:53 AM UTC
With further improvements now in place, we are continuing to monitor the system to ensure delivery times return to normal.
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resolved Oct 01, 2025, 08:59 AM UTC
This incident has been resolved.
Read the full incident report →
Notice September 30, 2025 - Detected by Pingoru
- Sep 30, 2025, 01:26 PM UTC
- Resolved
- Sep 30, 2025, 04:34 PM UTC
- Duration
- 3h 8m
Affected: Email sending (SMTP service)
Timeline · 3 updates
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investigating Sep 30, 2025, 01:26 PM UTC
We are aware of an issue with a mail server that is causing a delay in processing for some users. You may see emails held in "Processed" state. Our developers have identified the cause of the issue and are working to have this resolved. We will publish any updates here.
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monitoring Sep 30, 2025, 02:26 PM UTC
A fix has been implemented and we are monitoring the results.
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resolved Sep 30, 2025, 04:34 PM UTC
This incident has been resolved.
Read the full incident report →
Notice September 25, 2025 - Detected by Pingoru
- Sep 25, 2025, 09:26 AM UTC
- Resolved
- Sep 25, 2025, 12:19 PM UTC
- Duration
- 2h 52m
Affected: Email sending (SMTP service)
Timeline · 3 updates
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investigating Sep 25, 2025, 09:26 AM UTC
Some users are reporting soft bounces due to a false positive SpamHaus listing. SMTP2GO has confirmed with SpamHaus this is a false positive and the listing has been removed. See more here: https://www.spamhaus.org/query/ip/158.120.85.125 Please reach out to our support team if you believe you've been impacted
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investigating Sep 25, 2025, 11:27 AM UTC
We are continuing to investigate this issue.
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resolved Sep 25, 2025, 12:19 PM UTC
This incident has been resolved.
Read the full incident report →
Notice September 17, 2025 - Detected by Pingoru
- Sep 17, 2025, 03:02 PM UTC
- Resolved
- Sep 17, 2025, 08:07 PM UTC
- Duration
- 5h 4m
Affected: Member Dashboard
Timeline · 4 updates
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investigating Sep 17, 2025, 03:02 PM UTC
We are currently investigating login issues and possible app slowness. We apologise for any inconvenience encountered due to this.
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identified Sep 17, 2025, 07:29 PM UTC
The issue has been identified and a fix is being implemented.
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monitoring Sep 17, 2025, 07:52 PM UTC
A fix has been implemented and we are monitoring the results.
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resolved Sep 17, 2025, 08:07 PM UTC
This incident has been resolved. If any users are still experiencing issues, please contact support at [email protected].
Read the full incident report →
- Detected by Pingoru
- Sep 07, 2025, 11:30 PM UTC
- Resolved
- Sep 07, 2025, 11:30 PM UTC
- Duration
- —
Timeline · 1 update
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resolved Sep 08, 2025, 04:37 AM UTC
Between 21:30 UTC and 23:15 UTC on September 7, a server misconfiguration temporarily affected email delivery. A small number of emails were rejected with the error "550 From header sender domain not verified", or some bounced emails with a DMARC error (for domains with a DMARC policy of reject). The issue was resolved, and all services are fully operational. We apologize for any inconvenience this may have caused.
Read the full incident report →
- Detected by Pingoru
- Aug 26, 2025, 10:37 AM UTC
- Resolved
- Aug 29, 2025, 12:13 AM UTC
- Duration
- 2d 13h
Affected: Member Dashboard
Timeline · 6 updates
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investigating Aug 26, 2025, 08:59 AM UTC
We've noticed an issue with our internal reporting system, resulting in a delay for email events, which can cause emails to appear "processed" even after they've been delivered.
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investigating Aug 26, 2025, 09:48 AM UTC
We are continuing to investigate this issue.
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identified Aug 26, 2025, 10:33 AM UTC
The issue has been identified and a fix is being implemented.
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identified Aug 26, 2025, 10:37 AM UTC
A fix has been implemented. We are currently monitoring the outcome.
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monitoring Aug 26, 2025, 10:39 AM UTC
A fix has been implemented and we are monitoring the results.
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resolved Aug 29, 2025, 12:13 AM UTC
This incident has been resolved.
Read the full incident report →
- Detected by Pingoru
- Jul 21, 2025, 04:02 AM UTC
- Resolved
- Jul 21, 2025, 04:16 AM UTC
- Duration
- 13m
Affected: Member Dashboard
Timeline · 2 updates
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identified Jul 21, 2025, 04:02 AM UTC
A small number of customers may be encountering an error when trying to log in to their account, or an error of "too many recovery attempts - try later" when trying to reset the password. Our development team are aware and currently working to resolve this. We apologise for the inconvenience encountered and will update here as soon as we have further details. Note: sending is not impacted.
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resolved Jul 21, 2025, 04:16 AM UTC
The login and password reset issue has now been resolved. We apologise for the inconvenience encountered due to this. Please reach out to our support team if you continue to encounter any further issues with accessing your account or resetting the password.
Read the full incident report →
- Detected by Pingoru
- Jul 17, 2025, 08:36 AM UTC
- Resolved
- Jul 17, 2025, 10:48 AM UTC
- Duration
- 2h 12m
Timeline · 3 updates
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investigating Jul 17, 2025, 08:36 AM UTC
We are aware of an issue affecting our US clients regarding dashboard event updates, which may lead to delays in their status updates. Messages may display as "Processed" even after they've been successfully delivered.
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monitoring Jul 17, 2025, 09:46 AM UTC
A fix has been implemented and we are monitoring the results.
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resolved Jul 17, 2025, 10:48 AM UTC
This incident has been resolved.
Read the full incident report →
