Email domain
upcmail.nl email servers, SPF and DMARC
Mail for @upcmail.nl goes to mxin5.ziggo.nl (MX priority 5) and 1 backup host, as DNS showed on 5 November 2026. The host sits under ziggo.nl. The domain publishes an SPF record ending in ~all and a DMARC policy of p=reject, which decide whether mail claiming to be from @upcmail.nl is trusted.
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upcmail.nl mail DNS on 5 November 2026
| Priority | MX host | Platform |
|---|---|---|
| 5 | mxin5.ziggo.nl | Not identified |
| 10 | mxin10.ziggo.nl | Not identified |
| SPF | v=spf1 include:smtp.spf.ziggo.nl ~all |
|---|---|
| DMARC | v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];fo=1; adkim=s; aspf=s; |
| MTA-STS | None published |
| TLS reporting | v=TLSRPTv1; rua=mailto:[email protected] |
Read on 5 November 2026 with dig against 1.1.1.1 (8.8.8.8 as fallback); nothing sent to the mail servers. Check the records today with the email provider lookup.
upcmail.nl MX records
upcmail.nl publishes 2 MX hosts; senders try the lowest priority number first (mxin5.ziggo.nl, 5) and fall back to the others in order.
1 other domain we checked on the same day also route mail to hosts under ziggo.nl, with different records from upcmail.nl: home.nl.
upcmail.nl SPF record
The record on 5 November 2026 was v=spf1 include:smtp.spf.ziggo.nl ~all.
In plain terms, it delegates to smtp.spf.ziggo.nl. The top level uses 1 DNS-querying term; SPF allows 10 in total including nested includes (RFC 7208 §4.6.4).
It ends in a soft fail (~all): mail from unlisted servers should be accepted but treated as suspicious.
upcmail.nl DMARC policy
The record is v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];fo=1; adkim=s; aspf=s;.
p=reject asks receivers to refuse mail that fails DMARC.
Aggregate reports go to ag.eu.dmarcadvisor.com and inbound.mail.ziggo.com, so the domain's owner sees who sends mail as @upcmail.nl.
What that means for you: if a contact gives an @upcmail.nl address and you send to them, nothing changes. But never put an @upcmail.nl address in the From line of mail sent through your own tool or ESP. It can't pass DMARC for upcmail.nl, and this policy tells receivers to refuse it.
upcmail.nl TLS policy
It also asks for TLS reports with v=TLSRPTv1; rua=mailto:[email protected] (RFC 8460).
Domains on the same mail servers as upcmail.nl
3 other domains published exactly the same MX hosts and SPF record as upcmail.nl on 5 November 2026: casema.nl, chello.nl and quicknet.nl. Mail to any of them lands on the same servers.
upcmail.nl shares mxin10.ziggo.nl and mxin5.ziggo.nl with ziggo.nl. When we tested those servers for ziggo.nl on 13 October 2026, the result was: Verifiable. The server rejects unknown recipients during the SMTP conversation.
Can you verify @upcmail.nl addresses?
Our checker treats @upcmail.nl like any domain: syntax, MX, disposable and role checks first, then a made-up address to rule out a catch-all, then your address at RCPT TO, disconnecting without sending. We have not tested @upcmail.nl itself, but its mail goes to the same servers as ziggo.nl, so expect @upcmail.nl results to follow the pattern described there. Each result carries its own reason.
Cleaning a list with these addresses
DNS tells you where mail goes, not whether one person's mailbox still exists. For a list, run the whole file through a verifier before you send: invalid rows come out, risky rows (catch-all, unknown, refused) go in their own segment, and valid rows are safe to mail.
Common questions
- What are the MX records for upcmail.nl?
- On 5 November 2026:
mxin5.ziggo.nl(priority 5),mxin10.ziggo.nl(priority 10). - Does upcmail.nl have SPF and DMARC?
- On 5 November 2026
upcmail.nlpublished an SPF record ending in~alland a DMARC policy ofp=reject. - Is upcmail.nl a disposable email domain?
- No.
upcmail.nlis not on the disposable domain list our checker uses, so @upcmail.nl addresses are checked like any other mailbox. See the disposable domain checker for the list. - Is upcmail.nl the same mail system as casema.nl?
- Its DNS says so: on 5 November 2026 both published the same MX hosts and SPF record, so mail to either lands on the same servers.
Free checks for @upcmail.nl lists
- Bulk email checker for a pasted list or CSV
- Verify a whole file with a reason for every row
- SPF lookup counter
- MTA-STS checker
- Disposable email checker
Another domain? See every email domain we have mapped and what our checker does at each mailbox provider.
Got a list with @upcmail.nl addresses?
Sign in with Google and the first 100 addresses are checked free: valid, risky and invalid, with the reason for each row and a file to download. No card. After that, plans start at $9/mo for 2,500 emails a month.
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