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Opalstack Status
SMTP (DE)
◆ Operational
16 entries, newest to oldest
June 1, 2026 at 7:17 PM UTC
smtp.de.opalstack.com rebooted for emergency maintenance
Resolved after 7m
January 23, 2026 at 1:24 AM UTC
Unplanned emergencey maintenance on smtp2.de.opalstack.com
Resolved after 1d 13h 39m
August 16, 2025 at 3:48 PM UTC
Microsoft blocking mx1.us.opalstack.com and smtp1.de.opalstack.com
Resolved after 22h 29m
June 26, 2025 at 6:46 PM UTC
iCloud blocking US and DE SMTP
Resolved after 1d 2h 33m
March 3, 2025 at 8:21 PM UTC
DE SMTP blocked by iCloud
Resolved after 3d 21h 19m
February 15, 2024 at 3:21 PM UTC
EU mail system blocked by Hotmail
Resolved after 12h 9m
January 20, 2023 at 3:06 PM UTC
DE SMTP was blocked by Abusix
Resolved after 5h 2m
January 9, 2023 at 10:38 AM UTC
DE SMTP blocked by Proofpoint
Resolved after 1d 7h 45m
September 6, 2022 at 2:52 PM UTC
DE SMTP was briefly disrupted
Resolved in under a minute
January 3, 2022 at 9:40 PM UTC
German SMTP blocked by Microsoft
Resolved after 13d 17h 24m
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