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Admin.ch

Safe to Send

Admin.ch is operated by Swiss Federal Administration. The domain runs 4 mail exchanges and SMTP is responsive, with 2 of 3 authentication standards in place.

Safe to Send
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@admin.ch
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SOC 2 Type II GDPR CCPA 99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
Yes
Mail server responds to SMTP handshake
MX Records
4
Mail exchangers

Mail Exchange (MX) Records for admin.ch Mail Exchange records. They tell other mail servers which hosts are responsible for receiving email at this domain, in priority order. Lower priority numbers are tried first.

4 RECORDS
#10
mx02.mail.admin.ch 162.23.23.160
Reachable
#10
mx01.mail.admin.ch 162.23.22.160
Reachable
#10
mx03.mail.admin.ch 162.23.22.170
Reachable
#10
mx04.mail.admin.ch 162.23.23.170
Reachable
SMTP Handshake Simple Mail Transfer Protocol. We open a live SMTP connection to the primary MX and read the greeting banner. A response confirms the mail server is alive and accepting connections. Responsive
BANNER220 mx02.mail.admin.ch ESMTP Smtpd; Mon, 18 May 2026 01:11:45 +0200
Primary mail server accepted SMTP connection and returned a banner during the live audit.

admin.ch Email Authentication SPF · DKIM · DMARC

2/3 PASS
SPF Sender Policy Framework. A DNS record listing which servers are allowed to send mail for this domain. Receivers reject or flag mail from unauthorized servers. Pass
TXTv=spf1 redirect=_spfgroupa.admin.ch
Authorized senders are defined and pass SPF policy.
DKIM DomainKeys Identified Mail. The sending server cryptographically signs outbound mail with a private key, and receivers verify the signature using a public key in DNS. Missing
No DKIM signature detected on common selectors for admin.ch.
No DKIM signature was detected. Receivers cannot verify the integrity of outbound mail.
DMARC Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject. Quarantine
TXTv=DMARC1; p=quarantine; rua=mailto:dmarc.rua@admin.ch
Receivers are instructed to quarantine (route to spam) any mail that fails SPF or DKIM.

admin.ch Domain Registration WHOIS · Nameservers · Registrar

WHOIS
TLD.ch
Authoritative Nameservers (5)
  • ins5.admin.ch
  • ins1.admin.ch
  • ins2.admin.ch
  • ins3.admin.ch
  • ins4.admin.ch
About this Domain

About admin.ch

The domain admin.ch belongs to the Swiss Federal Administration, the executive branch of the Swiss Confederation based in Bern, Switzerland. It serves as the central digital platform for Switzerland's federal government, providing access to official services, legislation, and public information across the country's multilingual population.

Swiss federal government domains enforce robust email authentication standards. The admin.ch domain implements SPF, DKIM, and DMARC to protect official communications from spoofing and phishing attacks. Given Switzerland's role in international diplomacy and finance, impersonation of federal email addresses poses significant risks, making strict authentication policies essential.

SMTP servers for admin.ch generally do not operate in catch-all mode. The Swiss federal mail infrastructure applies strict recipient validation, rejecting messages to nonexistent addresses at the server level. Rate limiting and greylisting are commonly employed to manage inbound traffic and deter bulk unsolicited messages.

Achieving reliable email deliverability to admin.ch requires full compliance with SPF, DKIM, and DMARC standards. Swiss federal email gateways apply rigorous content filtering and sender reputation analysis. Ensuring proper DNS authentication records, maintaining a clean sending reputation, and following best practices for message formatting are all critical for successful delivery to Swiss government recipients.

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Common Questions About admin.ch

Is admin.ch a disposable or temporary email provider?
No. admin.ch is not a disposable email provider. It is classified as Government Email operated by Swiss Federal Administration and addresses on admin.ch are persistent rather than throwaway. Mail sent to a valid admin.ch mailbox reaches a real recipient.
How do I verify if a admin.ch email address is valid?
The fastest way to verify a admin.ch email address is to use our free email checker. Enter any @admin.ch mailbox at the top of this page and our system performs a real-time SMTP handshake against admin.ch's mail servers, confirming whether the mailbox exists, is reachable, and is safe to send to. No email is ever delivered during the check.
Can I check if a admin.ch email exists without sending a message?
Yes. Our real-time email verification API connects directly to admin.ch's mail server, opens an SMTP session, and queries the mailbox using the RCPT TO command without ever transmitting an actual email. The server's response confirms whether the admin.ch mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for admin.ch?
admin.ch currently publishes 4 mail exchange (MX) records. The primary MX is mx02.mail.admin.ch, which is the first server contacted when other mail systems try to deliver email to a admin.ch address. The full list with priorities and IP addresses is in the MX Records panel above. MX records tell sending servers where to route email for admin.ch.
Does admin.ch use SPF, DKIM, and DMARC email authentication?
admin.ch has 2 of the 3 standard email authentication records in place: SPF, and DMARC (policy: quarantine). Adding the missing layer(s) would tighten anti-spoofing protection and improve deliverability for legitimate admin.ch mail.
Why do emails to admin.ch bounce or get blocked?
Bounces from admin.ch usually fall into three buckets: the mailbox doesn't exist (5xx user unknown), the inbox is full, or your sending domain isn't authenticated to admin.ch's satisfaction. The fastest fix is to run each address through a free email verifier before you send, and to make sure your own SPF, DKIM, and DMARC are configured correctly so admin.ch's receivers trust you.
How can I verify a large list of admin.ch email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of admin.ch addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, admin.ch catch-all detection, role-account detection, and disposable-domain matching. Results typically come back within minutes and previously-failed addresses on your blacklist are reprocessed for free. For continuous high-volume needs, see our unlimited email verification API.
Is it safe to accept signups from admin.ch email addresses?
Yes, with normal hygiene. admin.ch is a legitimate email service and signups from @admin.ch behave like any other real user. Pipe each address through a real-time email verifier API at the moment of signup to catch typos and dead mailboxes, but there is no need to block admin.ch by default.
What email format does admin.ch use for usernames?
Most admin.ch mailboxes follow common patterns like first.last@admin.ch, firstinitiallast@admin.ch, or first@admin.ch, but the actual local-part rules depend on Swiss Federal Administration. The only reliable way to confirm whether a specific @admin.ch address exists is to run it through a free email verification tool. Guessing patterns will produce a high bounce rate and damage your sender reputation.
How is the admin.ch risk score calculated?
The 0-to-100 risk score for admin.ch combines disposable-domain classification, mail-server reachability, MX record presence and depth, SPF / DKIM / DMARC enforcement, DMARC policy strength, SMTP banner response, and domain age. Lower scores mean safer to send to. Disposable domains are pinned at the high end of the scale. The admin.ch score is recomputed on every audit so it always reflects the live state of the domain.
Is admin.ch a valid government email domain?
Yes, admin.ch is a valid official government email domain operated by Swiss Federal Administration. It is used by government employees and officials for official correspondence.
Is admin.ch a disposable or temporary email provider?
No, admin.ch is not a disposable or temporary email provider. It is an official government domain used for legitimate government communications and operations.
What mail server does admin.ch use?
admin.ch uses mail servers managed by Swiss Federal Administration. Check the MX records section above for specific server details and authentication configuration.
Can I send emails to admin.ch addresses?
Yes, admin.ch addresses accept incoming email. Government mail servers typically enforce strict spam filtering, authentication checks (SPF, DKIM, DMARC), and content scanning. Ensure your sending domain is properly authenticated.
How do I verify an email address at admin.ch?
Use BulkEmailChecker to verify admin.ch addresses. Government domains may have specific SMTP behaviors including greylisting and strict rate limiting. Our tool handles these provider-specific configurations automatically.