Service Disruption - Rejecting Small Number of HTTP and SMTP Requests

Incident Report for SendGrid

Resolved

We’ve monitored our systems after implementing the fix and have confirmed that customer impact has been remediated. We thank you for your patience and offer our sincere apology.
Posted 5 years ago. Dec 03, 2020 - 02:58 PST

Update

We believe all customer impact has been mitigated at this point and will continue monitoring system performance. We will update again in one hour, or less if more information becomes available. Thank you for your patience.
Posted 5 years ago. Dec 03, 2020 - 01:49 PST

Monitoring

Our Engineers have implemented a fix and we are seeing the number of rejected HTTP and SMTP requests decreasing. We will continue to monitor the situation to make sure errors continue to trend downwards. We will update again in one hour or less and offer our sincerest apology for any inconvenience.
Posted 5 years ago. Dec 03, 2020 - 01:05 PST

Identified

Our Engineering team has identified the issue and is working on implementing a fix. We will update again in one hour or less and offer our sincerest apology for any inconvenience.
Posted 5 years ago. Dec 03, 2020 - 00:09 PST

Update

Investigation continues into the intermittent rejection of a small number of HTTP and SMTP requests. Customers may be experiencing 421 SMTP responses and 503 HTTP responses intermittently. We will update in one hour, or less if more information becomes available. We apologize for any inconvenience.
Posted 5 years ago. Dec 02, 2020 - 23:31 PST

Update

Our engineers continue to investigate the intermittent rejection of a small number of HTTP and SMTP requests. Customers may be experiencing 421 SMTP responses and 503 HTTP responses. We will update in one hour, or less if more information becomes available. We apologize for any inconvenience caused.
Posted 5 years ago. Dec 02, 2020 - 22:36 PST

Investigating

Our engineers are currently investigating the intermittent rejection of HTTP and SMTP requests. Customers may be experiencing intermittent 421 responses to SMTP requests and 503 responses to HTTP requests. We will update in one hour, or less if more information becomes available. We apologize for any inconvenience caused.
Posted 5 years ago. Dec 02, 2020 - 21:32 PST
This incident affected: Mail Sending (API v3, SMTP, API v2) and API.