Ops One AG platform status and maintenance announcements. Times are indicated in local Swiss time. https://opsone.ch/.
All systems are operational
Scheduled Maintenance
Mailcow: Changes to Email Alias Forwarding

To improve email deliverability, we will restrict email aliases from forwarding messages to external domains.

Why this change?

Forwarding emails to external providers can cause authentication issues (particularly SPF), resulting in messages being rejected or classified as spam.

What does this mean?

  • Existing aliases will continue to work as usual, unless modified.
  • Forwarding to locally hosted domains remains unaffected.
  • Creating or modifying aliases to forward to external domains will be restricted.
  • External forwarding will remain possible through an alternative method.

For instructions, please see our forwarding guide.

If you have any questions, do not hesitate to contact us.

Start maintenance window: 30/11/2026 23:00
Stop maintenance window: 01/12/2026 02:00

Past Incidents

Monday 29th April 2019

Mailserver Update, scheduled 7 years ago

We perform software updates on our mail servers. We expect a downtime of ~5 minutes.

Start maintenance window: 29/04/2019 23:00 CEST
Stop maintenance window: 29/04/2019 23:59 CEST

New features / Changes: https://mailcow.email/2019/04/18/mid-april-updates/

Thursday 25th April 2019

No incidents reported

Wednesday 24th April 2019

No incidents reported

Tuesday 23rd April 2019

Managed Server Version 5: nodejs update, scheduled 7 years ago
nodejs/unknown 8.16.0-1nodesource1 amd64 [upgradable from: 8.15.1-1nodesource1]

Changelog: https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V8.md#8.16.0

Monday 22nd April 2019

No incidents reported

Sunday 21st April 2019

No incidents reported

Saturday 20th April 2019

No incidents reported

Friday 19th April 2019

No incidents reported