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Opalstack Status
SMTP (USA)
◆ Operational
18 entries, newest to oldest
January 26, 2026 at 5:09 PM UTC
US SMTP was blocked by Microsoft
Resolved in under a minute
June 26, 2025 at 6:46 PM UTC
iCloud blocking US and DE SMTP
Resolved after 1d 2h 33m
October 1, 2024 at 8:17 PM UTC
US SMTP blocked by Microsoft
Resolved after 5h 30m
January 24, 2024 at 8:03 PM UTC
Change to default SPF and DMARC policies
Resolved in under a minute
October 27, 2023 at 9:32 PM UTC
US SMTP listed on SORBS block list
Resolved after 3d 1h 11m
October 18, 2023 at 1:23 AM UTC
US SMTP and community forum are offline
Resolved after 12m
May 7, 2023 at 12:37 AM UTC
US SMTP was briefly disrupted
Resolved after 14m
August 27, 2022 at 2:24 AM UTC
US SMTP blocked by Cloudmark
Resolved after 3d 16h 8m
August 18, 2022 at 9:21 PM UTC
Slow logins on US SMTP
Resolved after 7h 22m
August 12, 2022 at 1:13 AM UTC
US SMTP was blocked by Microsoft
Resolved in under a minute
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