Outage in Exclaimer
Images not appearing in signature tests.
Resolved MinorIncident Report
Summary AI Generated
A Content Security Policy update inadvertently blocked external image sources in Exclaimer's cloud UI, causing web-hosted images to fail to display within the signature tester. Live email signatures were unaffected throughout the incident. The policy was corrected and deployed across all production regions, resolving the issue after approximately 13 hours.
Exclaimer engineers are aware of an issue causing some images not to appear within the signature tester result when a test is run.
The same images appear as expected in the signature designer and in live messages.
There is no impact on email signatures, as these images are applied as expected.
Trusted by 1,000+ teams
The Status Page Aggregator with Early Outage Detection
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
Latest Updates ( sorted recent to last )
RESOLVED
30 days ago - at 06/23/2026 08:01AM
This incident has been resolved. Web-hosted images in the signature editor are now loading correctly across all regions.
A recent update to the cloud UI's Content Security Policy inadvertently restricted external image sources, causing hosted images to fail to display. The policy has been updated to allow the required image sources, and the fix has been deployed to all production regions. We're monitoring to confirm stability.
We apologize for any disruption this caused.
INVESTIGATING
about 1 month ago - at 06/22/2026 07:01PM
Exclaimer engineers are aware of an issue causing some images not to appear within the signature tester result when a test is run.
The same images appear as expected in the signature designer and in live messages.
There is no impact on email signatures, as these images are applied as expected.
Latest Exclaimer outages
Issues accessing Signatures list in Exclaimer portal - 12 days ago
Issues processing messages within the UK region - 21 days ago
Mail not being processed in primary data centers - 24 days ago
The Status Page Aggregator with Early Outage Detection
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6320 services available
Integrations with
