[smtp] Problems with outbound sending on custom SMTP channels
This incident has been resolved.
The latest update from Front.
State
Resolved
Started
28 d ago
2026-10-05 07:42 UTC
Lasted
2 h 3 min
until 2026-10-05 09:45 UTC
Worst impact
Partial outage
Timeline
4 updatesInvestigating
52 min 42%
Identified
39 min 32%
Monitoring
32 min 26%
Updates
Times in UTCAs posted by Front
This incident has been resolved.
The fix is deployed and the problem appears to be resolved. We are continuing to monitor.
We believe we have identified the cause and are deploying a fix.
We are investigating a spike in failures for outbound sending on a subset of custom SMTP channels.
Affected components
1Front in the last 90 days
Full historyIncidents in 90 days
7
Days with an incident
7
Median duration
1 h 8 min
This incident
1.8× the median
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The upstream issues causing delays in our system have been resolved.

Front·[office365] [gmail] delays in sending and receiving messages for customers in [us-west-1], [us-west-2], and [eu-west-1]
This incident has been resolved.

Front·[office365] Delays in sending and receiving messages for some customers in [us-west-1] and [us-west-2]
This incident has been resolved.

Front·Application performance degraded
This incident has been resolved, and all activities have caught up to realtime. Front will continue to monitor application performance.
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