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

Friday 19th April 2019

No incidents reported

Thursday 18th April 2019

No incidents reported

Wednesday 17th April 2019

No incidents reported

Tuesday 16th April 2019

Mailrelay Migration, scheduled 7 years ago

On Tuesday 26.04.2019 we will migrate our mailrelay (mailrelay.snowflakehosting.ch) to a new server. Thanks to the redundant design, we do not expect any outage.

Monday 15th April 2019

No incidents reported

Sunday 14th April 2019

No incidents reported

Saturday 13th April 2019

No incidents reported