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Opalstack Status
Incident history
2026
(14)
July 26, 2026 at 11:00 PM UTC
Opal17 server connectivity outage
Resolved after 6h 7m
July 22, 2026 at 3:02 PM UTC
US IMAP impacted by scheduled maintenance
Resolved after 16h 4m
July 11, 2026 at 9:29 PM UTC
DE webmail not responding
Resolved after 1h 19m
July 8, 2026 at 9:14 AM UTC
Emergency security maintenance / reboots on all AlmaLinux (EL9) servers
Resolved in under a minute
June 1, 2026 at 7:17 PM UTC
smtp.de.opalstack.com rebooted for emergency maintenance
Resolved after 7m
May 27, 2026 at 12:37 AM UTC
Unplanned emergency maintenance on imap1.de.opalstack.com
Resolved after 23h 40m
April 30, 2026 at 7:31 AM UTC
Emergency security maintenance / reboots on all AlmaLinux (EL9) servers
Resolved in under a minute
April 23, 2026 at 4:27 AM UTC
MariaDB disruption on opal9
Resolved after 2h 26m
April 22, 2026 at 7:43 AM UTC
MariaDB disruption on opal16
Resolved after 9h 7m
April 3, 2026 at 1:25 PM UTC
opal12 under attack
Resolved after 13m
March 17, 2026 at 3:54 PM UTC
MariaDB disruption on opal15
Resolved after 2d 22h 26m
February 21, 2026 at 2:11 PM UTC
MariaDB disruption on opal5
Resolved after 1d 23h 18m
January 26, 2026 at 5:09 PM UTC
US SMTP was blocked by Microsoft
Resolved in under a minute
January 23, 2026 at 1:24 AM UTC
Unplanned emergencey maintenance on smtp2.de.opalstack.com
Resolved after 1d 13h 39m
2025
(24)
December 18, 2025 at 11:16 PM UTC
Unplanned Maintenance: webmail.de.opalstack.com
Resolved after 3h 20m
November 5, 2025 at 5:57 PM UTC
unexpected reboot of opal13
Resolved after 13h 24m
October 18, 2025 at 7:20 PM UTC
opal3.opalstack.com rebooted
Resolved after 26m
September 9, 2025 at 7:55 AM UTC
Unexpected reboot of opal9
Resolved after 6h 27m
September 1, 2025 at 11:40 PM UTC
Unexpected reboot of opal4
Resolved after 2d 20h 41m
August 29, 2025 at 12:05 AM UTC
Control panel SSL certificate was expired
Resolved in under a minute
August 18, 2025 at 2:49 PM UTC
MariaDB offline on opal1
Resolved after 1d 3h 32m
August 16, 2025 at 3:48 PM UTC
Microsoft blocking mx1.us.opalstack.com and smtp1.de.opalstack.com
Resolved after 22h 29m
July 27, 2025 at 2:11 PM UTC
intermittent connectivity for Newark VPS
Resolved after 1d 1h 20m
July 22, 2025 at 11:16 PM UTC
Control panel and API offline
Resolved after 13h 28m
July 15, 2025 at 6:52 PM UTC
opal11 not responding
Resolved after 5h 17m
June 26, 2025 at 6:46 PM UTC
iCloud blocking US and DE SMTP
Resolved after 1d 2h 33m
June 6, 2025 at 12:46 PM UTC
unexpected reboot of opal4
Resolved after 10h 13m
June 4, 2025 at 2:25 PM UTC
heavy load on opal4
Resolved after 1d 41m
June 1, 2025 at 11:20 AM UTC
Unexpected reboot of opal12
Resolved after 1d 3h 7m
May 31, 2025 at 4:24 PM UTC
opal5 not responding
Resolved after 9m
May 17, 2025 at 1:04 PM UTC
Inadvertent shutdown of opal1
Resolved in under a minute
March 9, 2025 at 8:12 AM UTC
OPAL4 MariaDB Outage
Resolved after 10h 59m
March 3, 2025 at 8:21 PM UTC
DE SMTP blocked by iCloud
Resolved after 3d 21h 19m
March 1, 2025 at 2:44 AM UTC
opal3 not responding
Resolved after 2m
February 19, 2025 at 6:00 AM UTC
Inadvertent shutdown of opal12
Resolved after 87d 7h 3m
January 21, 2025 at 4:09 AM UTC
opal12 not responding
Resolved after 10h 50m
January 17, 2025 at 5:14 PM UTC
High load on opal15
Resolved after 3h 56m
January 16, 2025 at 1:34 PM UTC
MariaDB down on opal10
Resolved after 5h 26m
2024
(31)
December 7, 2024 at 10:16 AM UTC
OPAL7 MariaDB Server Offline
Resolved after 4h 57m
October 28, 2024 at 8:02 PM UTC
High load on opal13
Resolved after 18d 18h 3m
October 1, 2024 at 8:17 PM UTC
US SMTP blocked by Microsoft
Resolved after 5h 30m
September 29, 2024 at 9:30 AM UTC
DE mail SSL certificates were briefly expired
Resolved after 8h 4m
September 21, 2024 at 11:09 PM UTC
DE forwarding main server blocked by Microsoft
Resolved after 4d 18h 38m
September 19, 2024 at 6:16 PM UTC
MariaDB down on opal7
Resolved after 2h 42m
September 19, 2024 at 6:01 PM UTC
opal6 under heavy load
Resolved after 17m
September 14, 2024 at 6:41 PM UTC
Intermittent network connectivity to opal12
Resolved after 1d 20h 22m
September 12, 2024 at 3:46 PM UTC
opal12 blocked by Malwarebytes
Resolved after 19d 4h 45m
August 20, 2024 at 6:02 PM UTC
opal10 rebooted unexpectedly
Resolved after 8d 2h 44m
July 31, 2024 at 10:19 AM UTC
OPAL4 - MariaDB has crashed.
Resolved after 6h 41m
June 14, 2024 at 9:34 AM UTC
OPAL6 PostgreSQL upgrade issues.
Resolved after 59m
May 31, 2024 at 11:45 AM UTC
DNS outage (resolved)
Resolved after 3h 7m
May 30, 2024 at 7:47 PM UTC
Intermittent high load on opal14
Resolved after 2d 20h 12m
May 23, 2024 at 7:39 PM UTC
OPAL12 unresponsive.
Resolved after 1h 37m
April 19, 2024 at 4:23 PM UTC
Temporary mail certificate error, now resolved
Resolved in under a minute
April 17, 2024 at 7:33 PM UTC
Mail forwarding issue (now resolved)
Resolved in under a minute
April 8, 2024 at 2:14 PM UTC
Nginx offline on opal8
Resolved after 22m
April 3, 2024 at 7:46 PM UTC
Control panel delays for US email
Resolved after 5d 1h 54m
April 2, 2024 at 6:04 PM UTC
Delays in US incoming mail
Resolved after 2h 26m
March 30, 2024 at 11:04 PM UTC
Opal14 not responding
Resolved after 15h 48m
March 24, 2024 at 9:01 PM UTC
Control panel delays for MariaDB items on opal16
Resolved after 17h 0m
March 18, 2024 at 6:25 PM UTC
Control panel processing delays
Resolved after 3h 39m
March 12, 2024 at 2:24 PM UTC
DNS issue for opalstack.com causing control panel delays and other issues
Resolved after 1h 22m
February 24, 2024 at 1:31 AM UTC
Delays in mail forwarding to Google
Resolved after 10h 24m
February 19, 2024 at 4:44 PM UTC
Delays in mail forwarding to Google
Resolved after 2h 39m
February 15, 2024 at 3:21 PM UTC
EU mail system blocked by Hotmail
Resolved after 12h 9m
February 9, 2024 at 5:32 PM UTC
Recent disruptions to Apache service on opal16
Resolved after 23h 6m
January 24, 2024 at 8:03 PM UTC
Change to default SPF and DMARC policies
Resolved in under a minute
January 7, 2024 at 5:10 AM UTC
Opal14 is not responding
Resolved after 8m
January 6, 2024 at 10:15 PM UTC
German MX servers are on Hotmail block list
Resolved after 19h 51m
2023
(17)
December 3, 2023 at 7:23 AM UTC
Emergency MariaDB maintenance for opal4, opal7, and opal9
Resolved after 14h 58m
November 4, 2023 at 9:12 PM UTC
Emergency reboot of opal3
Resolved after 4m
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
August 15, 2023 at 9:58 PM UTC
ns3.de.opalstack.com offline, causing control panel delays
Resolved after 6h 39m
July 20, 2023 at 10:30 PM UTC
Opal8 service disruption
Resolved after 38m
June 30, 2023 at 11:19 AM UTC
Partial DNS outage.
Resolved after 1h 41m
June 14, 2023 at 4:01 PM UTC
Intermittent network connectivity in Washington DC
Resolved after 1d 1h 49m
May 31, 2023 at 4:35 PM UTC
Intermittent VPS connectivity in Frankfurt
Resolved after 1d 5h 23m
May 28, 2023 at 4:04 AM UTC
Opal9 offline for scheduled maintenance
Resolved after 19m
May 7, 2023 at 12:37 AM UTC
US SMTP was briefly disrupted
Resolved after 14m
May 2, 2023 at 4:48 AM UTC
US DNS under attack
Resolved after 8h 55m
March 7, 2023 at 6:20 PM UTC
US webmail performance issues
Resolved after 10d 58m
February 1, 2023 at 4:27 AM UTC
Opal9 not responding
Resolved after 15d 8h 52m
January 24, 2023 at 8:05 AM UTC
German IMAP/POP3 server offline for scheduled relocation
Resolved after 8h 56m
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
2022
(39)
December 29, 2022 at 12:00 PM UTC
Ongoing DNS DDOS Attack
Resolved after 1d 4h 40m
December 29, 2022 at 2:21 AM UTC
Delayed domain updates
Resolved after 2h 26m
December 10, 2022 at 12:00 AM UTC
Unplanned reboot of opal3
Resolved after 3d 21h 5m
November 18, 2022 at 2:14 PM UTC
MariaDB disrupted on opal11
Resolved in under a minute
November 3, 2022 at 5:57 PM UTC
Slow performance on the US IMAP/POP3 service
Resolved after 6d 2h 13m
October 20, 2022 at 3:41 PM UTC
opal13 not responding
Resolved after 4h 38m
October 19, 2022 at 1:07 PM UTC
IPv6 email rejections
Resolved after 33m
October 14, 2022 at 5:54 PM UTC
Delays in US mail forwarding to @yahoo.com addresses
Resolved after 19h 10m
October 13, 2022 at 11:30 AM UTC
opal10 not responding
Resolved after 4h 30m
October 7, 2022 at 3:31 PM UTC
Apache was down on opal3
Resolved in under a minute
October 6, 2022 at 10:44 PM UTC
mx2.us.opalstack.com blocked by Microsoft
Resolved after 2d 14h 45m
October 6, 2022 at 3:46 PM UTC
Slow connections or timeouts on US IMAP/POP3/Webmail
Resolved in under a minute
September 19, 2022 at 9:26 PM UTC
opal8 not responding
Resolved after 46m
September 16, 2022 at 3:52 PM UTC
Dashboard disk usage stats incorrect
Resolved after 1h 47m
September 15, 2022 at 7:00 AM UTC
Opal11 offline for scheduled relocation
Resolved after 6h 54m
September 14, 2022 at 6:18 PM UTC
Singapore VPS were briefly offline
Resolved after 2h 6m
September 6, 2022 at 2:52 PM UTC
DE SMTP was briefly disrupted
Resolved in under a minute
August 27, 2022 at 4:46 AM UTC
Opal10 not responding
Resolved after 1d 8m
August 27, 2022 at 2:24 AM UTC
US SMTP blocked by Cloudmark
Resolved after 3d 16h 8m
August 25, 2022 at 10:38 PM UTC
Several London VPS are offline
Resolved after 5h 39m
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
August 1, 2022 at 9:49 PM UTC
London VPS services offline
Resolved after 1d 16h 18m
July 8, 2022 at 9:40 PM UTC
Opal1 not responding
Resolved after 17m
May 29, 2022 at 4:51 AM UTC
MariaDB down on OPAL2.
Resolved after 13h 22m
May 20, 2022 at 3:45 PM UTC
Opal4 offline
Resolved after 46m
May 13, 2022 at 3:56 PM UTC
US SMTP blacklisted
Resolved after 3h 3m
May 7, 2022 at 6:53 PM UTC
Opal12 was offline
Resolved after 6d 7h 42m
April 18, 2022 at 5:31 PM UTC
opal5 not responding
Resolved after 1h 13m
April 3, 2022 at 10:23 AM UTC
opal10 not responding
Resolved after 15d 7h 7m
April 1, 2022 at 8:30 AM UTC
Germany mail server offline.
Resolved after 8d 5h 20m
March 4, 2022 at 4:35 PM UTC
MariaDB down on opal7
Resolved after 13m
February 16, 2022 at 3:00 AM UTC
MariaDB restarted on Opal8
Resolved after 19m
February 10, 2022 at 7:43 PM UTC
Service disruption caused by firewall issue
Resolved after 5m
February 8, 2022 at 1:04 PM UTC
opal6 offline
Resolved after 9h 52m
February 2, 2022 at 9:18 PM UTC
Several DE VPS offline due to emergency maintenance
Resolved after 1h 24m
January 26, 2022 at 8:00 PM UTC
SFO VPS service disruption
Resolved after 2h 5m
January 22, 2022 at 7:42 PM UTC
DDOS on opal1
Resolved after 20h 48m
January 3, 2022 at 9:40 PM UTC
German SMTP blocked by Microsoft
Resolved after 13d 17h 24m
2021
(41)
December 28, 2021 at 6:50 PM UTC
Opal4 not responding
Resolved after 19m
December 18, 2021 at 7:30 PM UTC
German SMTP blocked by Microsoft
Resolved after 4d 20h 12m
December 11, 2021 at 3:09 PM UTC
Intermittent connectivity to San Francisco servers including US webmail
Resolved after 4h 48m
November 8, 2021 at 12:00 PM UTC
German SMTP server blocked
Resolved after 2d 3h 39m
September 30, 2021 at 2:43 PM UTC
Mail server certificates expired
Resolved after 27m
September 16, 2021 at 10:31 PM UTC
Intermittent high load on opal11
Resolved after 15d 15h 29m
September 10, 2021 at 12:02 PM UTC
opal3 not responding
Resolved after 1h 36m
August 8, 2021 at 12:57 AM UTC
Dashboard control loop issue
Resolved after 1h 15m
August 1, 2021 at 11:12 PM UTC
Delay in dashboard operations
Resolved after 5h 38m
July 12, 2021 at 9:32 AM UTC
opal5 offline
Resolved after 21m
July 9, 2021 at 9:08 PM UTC
Apache was down on Opal8
Resolved in under a minute
June 12, 2021 at 10:45 AM UTC
German SMTP offline
Resolved after 2h 55m
June 12, 2021 at 2:50 AM UTC
Opal7 rebooted unexpectedly
Resolved after 2d 12h 21m
June 10, 2021 at 2:00 AM UTC
Apache was briefly down on opal5
Resolved after 7m
June 9, 2021 at 9:28 AM UTC
German IMAP/POP3 service offline
Resolved after 11m
May 25, 2021 at 12:20 AM UTC
Network outage affecting domains that use Opalstack DE name servers
Resolved after 1d 1h 22m
May 24, 2021 at 4:56 PM UTC
opal1 not responding
Resolved after 17m
May 17, 2021 at 6:00 AM UTC
Temporary SSL problem in US mail system
Resolved after 15h 9m
May 12, 2021 at 11:02 PM UTC
German SMTP IP range on MS block list
Resolved after 1d 20h 42m
May 10, 2021 at 9:23 PM UTC
Opal8 not responding
Resolved after 5h 3m
April 30, 2021 at 3:48 PM UTC
MariaDB down on opal9
Resolved after 9m
April 17, 2021 at 4:45 AM UTC
Control panel and API down for scheduled maintenance.
Resolved after 21m
April 17, 2021 at 4:41 AM UTC
Opal1 not responding
Resolved after 58m
April 14, 2021 at 7:03 AM UTC
Opal7 server relocation
Resolved after 6h 36m
March 29, 2021 at 11:30 AM UTC
Apache was down on Opal6
Resolved after 3h 3m
March 24, 2021 at 9:50 AM UTC
IMAP1US Offline
Resolved after 5h 10m
March 12, 2021 at 9:19 PM UTC
DE SMTP on Proofpoint blacklist
Resolved after 3d 16m
February 18, 2021 at 11:00 AM UTC
Opal1 service disruption
Resolved after 10h 56m
February 12, 2021 at 2:23 PM UTC
DE IMAP service down
Resolved after 2h 2m
February 9, 2021 at 2:18 PM UTC
Incoming mail problems in Germany
Resolved after 1d 1h 31m
February 2, 2021 at 5:38 PM UTC
Intermittent errors on webmail
Resolved after 1d 3h 21m
February 1, 2021 at 3:02 AM UTC
US IMAP scheduled maintenance
Resolved after 21h 45m
January 29, 2021 at 8:30 PM UTC
US IMAP service not responding
Resolved after 1h 19m
January 25, 2021 at 6:56 PM UTC
EU VPS and NS connectivity problems
Resolved after 3h 9m
January 23, 2021 at 6:43 PM UTC
US SMTP on Cloudmark blacklist
Resolved after 1d 21h 23m
January 21, 2021 at 3:23 PM UTC
EU VPS network connectivity problems
Resolved after 23h 4m
January 19, 2021 at 8:35 PM UTC
US IMAP service performance degraded
Resolved after 47m
January 17, 2021 at 3:39 PM UTC
Opal3 not responding
Resolved after 1h 19m
January 11, 2021 at 6:04 PM UTC
rebooting US IMAP server
Resolved after 58m
January 7, 2021 at 2:03 AM UTC
opal5 was offline
Resolved in under a minute
January 5, 2021 at 3:42 PM UTC
US SMTP blacklisted
Resolved after 6h 17m
2020
(33)
December 28, 2020 at 6:46 PM UTC
Opal4 not responding
Resolved after 6h 56m
December 20, 2020 at 11:00 AM UTC
Connectivity issues in Singapore
Resolved after 1d 7h 21m
December 18, 2020 at 5:30 PM UTC
Network outage in Singapore
Resolved after 3h 47m
December 16, 2020 at 11:36 AM UTC
Singapore servers were offline
Resolved after 9h 8m
December 14, 2020 at 9:14 PM UTC
Slow IMAP performance
Resolved after 5d 1h 3m
December 11, 2020 at 7:17 PM UTC
Recurring attacks on opal4
Resolved after 4d 9h 23m
December 9, 2020 at 5:30 PM UTC
Dashboard was not pushing changes
Resolved after 4h 0m
November 16, 2020 at 11:30 AM UTC
Apache down on opal6
Resolved after 4h 16m
November 13, 2020 at 7:01 PM UTC
Forwarding from US MX servers blocked by AT&T
Resolved after 21h 28m
November 11, 2020 at 7:24 PM UTC
opal4 not responding
Resolved after 17d 20m
November 10, 2020 at 9:31 PM UTC
Newark VPS hosting is offline
Resolved after 44m
November 5, 2020 at 1:31 AM UTC
Apache httpd problems on opal3
Resolved after 1d 20h 9m
October 25, 2020 at 10:50 PM UTC
US SMTP blocked by outlook.com
Resolved after 7d 7h 18m
October 21, 2020 at 5:40 PM UTC
Let's Encrypt rate limit for opalstacked.com subdomains
Resolved after 13d 1h 54m
October 19, 2020 at 8:40 PM UTC
Opal4 offline
Resolved after 3m
October 18, 2020 at 3:34 PM UTC
Intermittent PHP-FPM failures on Opal4 and Opal5
Resolved after 7d 11h 20m
October 17, 2020 at 5:48 AM UTC
Opal4 (Dallas) offline
Resolved after 2h 50m
August 16, 2020 at 1:00 PM UTC
Service disruption in San Francisco
Resolved after 3h 17m
July 23, 2020 at 7:30 PM UTC
intermittent connectivity problems on opal4
Resolved after 59m
July 13, 2020 at 8:11 PM UTC
Opal4 network was disrupted
Resolved after 37m
July 7, 2020 at 10:54 PM UTC
Opal4 under high load
Resolved after 19m
June 14, 2020 at 10:24 PM UTC
Cron mail not working
Resolved after 1d 22h 34m
April 30, 2020 at 9:48 PM UTC
Opal4 not responding
Resolved after 1h 9m
April 30, 2020 at 3:10 PM UTC
Apache was not responding on Opal4
Resolved after 1h 33m
April 24, 2020 at 6:23 PM UTC
Apache was not responding on Opal4
Resolved after 3d 22h 59m
April 16, 2020 at 7:00 PM UTC
Connectivity issues in Frankfurt
Resolved after 1h 37m
April 10, 2020 at 11:40 PM UTC
Opal4 load issues
Resolved after 13d 20h 20m
February 26, 2020 at 10:55 PM UTC
Opal4 not responding
Resolved after 1d 17h 7m
February 12, 2020 at 11:30 AM UTC
DE IMAP service offline
Resolved after 11h 0m
February 1, 2020 at 4:56 AM UTC
Opal1 offline for scheduled maintenance
Resolved after 10h 51m
January 24, 2020 at 2:15 PM UTC
US SMTP server blacklisted by Microsoft
Resolved after 74d 2h 27m
January 12, 2020 at 5:40 PM UTC
Opal3 offline
Resolved after 6h 44m
January 8, 2020 at 12:36 AM UTC
Intermittent outages on opal4
Resolved after 89d 15h 27m
2019
(3)
December 4, 2019 at 4:15 PM UTC
Control Panel CSS broken
Resolved after 27m
November 25, 2019 at 7:19 PM UTC
US MX server blacklisted by Cloudmark
Resolved after 22h 11m
November 25, 2019 at 7:00 AM UTC
Control panel issue
Resolved after 1d 12h 54m