Domain Intelligence
Last Updated:
Swisscom.ch
Safe to Send
Swisscom.ch is operated by Swisscom. The domain runs 3 mail exchanges and SMTP is responsive, with 2 of 3 authentication standards in place.
Safe to Send
RISK
23
/100
Low
Verify Mailbox
Verify @swisscom.ch emails
Live SMTP handshake against swisscom.ch mail servers. No email is sent. 10 free per day, no signup.
Trusted by 400,000+ senders
4.9/5
From 8,500+ verified reviews
Switched after a billing dispute with NeverBounce. Same SMTP results on a 5k test sample. The MX, SPF, DKIM lookup tools are a hidden value-add for debugging client deliverability complaints. James Wexler · Growth Engineer
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
3
Mail exchangers
Mail Exchange (MX) Records for swisscom.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.
#10
mail.swisscom.com 138.188.176.225
Reachable
#20
mail20.swisscom.com 138.188.184.33
Reachable
#20
mail10.swisscom.com 138.188.176.225
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 mail.swisscom.com ESMTP Service Swisscom (Switzerland) Ltd Ready
Primary mail server accepted SMTP connection and returned a banner during the live audit.
swisscom.ch Email Authentication SPF · DKIM · DMARC
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 include:spf.swisscom.com -all
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 swisscom.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.
Reject
TXTv=DMARC1; p=reject; pct=100; rua=mailto:reports-rua@swisscom.com; ruf=mailto:reports-ruf@swisscom.com;
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.
swisscom.ch Domain Registration WHOIS · Nameservers · Registrar
TLD.ch
Authoritative Nameservers (3)
- dns2.swisscom.com
- dns1.swisscom.com
- dns3.swisscom.com
About this Domain
About swisscom.ch
swisscom.ch is the corporate email domain for Swisscom, Switzerland's largest telecommunications company. Swisscom provides broadband, mobile, TV, and enterprise services to millions of Swiss customers. While consumer email is typically on the bluewin.ch domain, swisscom.ch is used for business and corporate communications.
swisscom.ch supports robust SPF, DKIM, and DMARC authentication through Swisscom enterprise infrastructure. As Switzerland's largest telecom, Swisscom enforces strict authentication standards.
The swisscom.ch mail servers perform thorough recipient validation and apply comprehensive enterprise-grade spam filtering.
For delivery to swisscom.ch, authenticate with SPF and DKIM, maintain a positive sender reputation, and comply with the Swiss Federal Data Protection Act.
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Common Questions About swisscom.ch
Is swisscom.ch a disposable or temporary email provider?
No. swisscom.ch is not a disposable email provider. It is classified as ISP Email Provider operated by Swisscom and addresses on swisscom.ch are persistent rather than throwaway. Mail sent to a valid swisscom.ch mailbox reaches a real recipient.
How do I verify if a swisscom.ch email address is valid?
The fastest way to verify a swisscom.ch email address is to use our free email checker. Enter any @swisscom.ch mailbox at the top of this page and our system performs a real-time SMTP handshake against swisscom.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 swisscom.ch email exists without sending a message?
Yes. Our real-time email verification API connects directly to swisscom.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 swisscom.ch mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for swisscom.ch?
swisscom.ch currently publishes 3 mail exchange (MX) records. The primary MX is mail.swisscom.com, which is the first server contacted when other mail systems try to deliver email to a swisscom.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 swisscom.ch.
Does swisscom.ch use SPF, DKIM, and DMARC email authentication?
swisscom.ch has 2 of the 3 standard email authentication records in place: SPF, and DMARC (policy: reject). Adding the missing layer(s) would tighten anti-spoofing protection and improve deliverability for legitimate swisscom.ch mail.
Why do emails to swisscom.ch bounce or get blocked?
Bounces from swisscom.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 swisscom.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 swisscom.ch's receivers trust you.
How can I verify a large list of swisscom.ch email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of swisscom.ch addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, swisscom.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 swisscom.ch email addresses?
Yes, with normal hygiene. swisscom.ch is a legitimate email service and signups from @swisscom.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 swisscom.ch by default.
What email format does swisscom.ch use for usernames?
Most swisscom.ch mailboxes follow common patterns like first.last@swisscom.ch, firstinitiallast@swisscom.ch, or first@swisscom.ch, but the actual local-part rules depend on Swisscom. The only reliable way to confirm whether a specific @swisscom.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 swisscom.ch risk score calculated?
The 0-to-100 risk score for swisscom.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 swisscom.ch score is recomputed on every audit so it always reflects the live state of the domain.
Is swisscom.ch a valid email domain?
Yes, swisscom.ch is a valid email domain operated by Swisscom, Switzerland's largest telecommunications company, used primarily for business and corporate communications.
Is swisscom.ch a disposable or temporary email service?
No, swisscom.ch is not a disposable or temporary email service. It is a permanent email domain operated by Swisscom, Switzerland's premier telecom provider.
What mail servers does swisscom.ch use?
swisscom.ch uses mail servers managed by Swisscom enterprise infrastructure. The MX records direct inbound email to Swisscom gateways with comprehensive filtering.
Can I send marketing emails to swisscom.ch addresses?
You can send marketing emails to swisscom.ch addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with Swiss data protection regulations, and honor unsubscribe requests.
How do I verify a swisscom.ch email address?
You can verify a swisscom.ch email address using an email verification service that checks MX records and performs SMTP-level validation to confirm the mailbox is active.