Does this concern you?
Only if your domain's DNS zone is held somewhere other than with us — a domain kept at another registrar, or name servers of your own choosing.
If we registered or transferred your domain and it uses our name servers, these records are already in place: there is nothing for you to do.
The order of operations
- Wait until your mailboxes are open. An MX pointing to a mailbox that does not exist yet gets messages rejected.
- Create the records from the table at the bottom of this page, at your DNS host.
- Remove the old MX records. Two competing destinations send part of the messages where nobody reads them any more.
- Check.
What each record does
- MX — names the server that receives your mail. It is the only one required for
reception. One is enough:
mail.mail-exchange.chstands for our receiving servers, redundant among themselves. - TXT (SPF) — authorises our servers to send on your behalf. Without it, your mail lands in junk. See SPF, DKIM and DMARC.
- SRV
_autodiscover._tcp— lets Outlook and phones configure themselves from the address alone. - CNAME
mail— optional: gives your users the addressmail.your-domain.chfor the webmail. - TXT
_dmarc— tells recipients what to do with a message that fails the checks.
Check
In the client area, on the Domains page, the Check DNS button queries public DNS and tells you, record by record, what is in place and what is missing.
A DNS change is not instant: allow a few minutes to a few hours, depending on the lifetime (TTL) of the old records. If you are preparing a migration, lower that value the day before.
The values
Replace your-domain.ch with yours. “@” stands for the domain itself.