Email domain
cfl.rr.com email servers, SPF and DMARC
Mail for @cfl.rr.com goes to pkvw-mx.msg.pkvw.co.charter.net (MX priority 10), as DNS showed on 5 November 2026. The host sits under charter.net. The domain publishes an SPF record ending in ~all and no DMARC record, which decide whether mail claiming to be from @cfl.rr.com is trusted.
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cfl.rr.com mail DNS on 5 November 2026
| Priority | MX host | Platform |
|---|---|---|
| 10 | pkvw-mx.msg.pkvw.co.charter.net | Not identified |
| SPF | v=spf1 include:a._spf.rr.com include:chr.spf.a.cloudfilter.net ~all |
|---|---|
| DMARC | None published |
| MTA-STS | None published |
| TLS reporting | None published |
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.
cfl.rr.com MX records
cfl.rr.com publishes a single MX host, pkvw-mx.msg.pkvw.co.charter.net. With no backup host, a sender that can't reach it queues the message and retries until the server answers or the queue gives up.
5 other domains we checked on the same day also route mail to hosts under charter.net, with different records from cfl.rr.com: cinci.rr.com, austin.rr.com, columbus.rr.com, sc.rr.com and triad.rr.com.
cfl.rr.com SPF record
The record on 5 November 2026 was v=spf1 include:a._spf.rr.com include:chr.spf.a.cloudfilter.net ~all.
In plain terms, it delegates to a._spf.rr.com and chr.spf.a.cloudfilter.net. The top level uses 2 DNS-querying terms; 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.
cfl.rr.com DMARC policy
_dmarc.cfl.rr.com returned no DMARC record on 5 November 2026. Receivers therefore get no instruction about mail that fails SPF and DKIM, which makes @cfl.rr.com easier to spoof (RFC 7489).
Domains on the same mail servers as cfl.rr.com
7 other domains published exactly the same MX hosts and SPF record as cfl.rr.com on 5 November 2026: hawaii.rr.com, ec.rr.com, kc.rr.com, nc.rr.com, neo.rr.com, tampabay.rr.com and woh.rr.com. Mail to any of them lands on the same servers.
cfl.rr.com shares pkvw-mx.msg.pkvw.co.charter.net with roadrunner.com. When we tested those servers for roadrunner.com on 4 November 2026, the result was: Verifiable. The server rejects unknown recipients during the SMTP conversation.
cfl.rr.com shares pkvw-mx.msg.pkvw.co.charter.net with twc.com. When we tested those servers for twc.com on 4 November 2026, the result was: Verifiable. The server rejects unknown recipients during the SMTP conversation.
Can you verify @cfl.rr.com addresses?
Our checker treats @cfl.rr.com 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 @cfl.rr.com itself, but its mail goes to the same servers as roadrunner.com, so expect @cfl.rr.com 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 cfl.rr.com?
- On 5 November 2026:
pkvw-mx.msg.pkvw.co.charter.net(priority 10). - Does cfl.rr.com have SPF and DMARC?
- On 5 November 2026
cfl.rr.compublished an SPF record ending in~alland no DMARC record. - Is cfl.rr.com a disposable email domain?
- No.
cfl.rr.comis not on the disposable domain list our checker uses, so @cfl.rr.com addresses are checked like any other mailbox. See the disposable domain checker for the list. - Is cfl.rr.com the same mail system as hawaii.rr.com?
- 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 @cfl.rr.com 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 @cfl.rr.com 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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