C
radolf.com
Score 78/100 · 1 failing, 2 warnings
Mail provider: secure-mailgate.com
Check another domain Re-scan

Scanned 6 days ago. Re-scan for a fresh result after a fix.

Issues to fix

Results

01Mail exchangers (MX)A
pass
2 MX record(s) found.
records
preferenceexchangettl
10mx03.secure-mailgate.com3600
10mx04.secure-mailgate.com3600
info
Multiple MX hosts share a preference, delivery load-balances across them.
02Mail providerA
info
Mail is handled by secure-mailgate.com, a self-hosted or independent provider.
provider secure-mailgate.com
03SPFA
pass
SPF record present.
record v=spf1 a mx include:secure-mailgate.com ~all
pass
SPF uses 4 of the 10 permitted DNS lookups.
RFC 7208 §4.6.4
lookups 4
pass
~all default policy.
RFC 7208
04DKIMA
info
No DKIM selector found via common probes (a _domainkey subtree exists but no common selector matched), the domain may use a custom selector.
RFC 6376 (updated by RFC 8553, RFC 8616)
05DMARCC
fail
No DMARC record: receivers have no policy for handling unauthenticated mail.
RFC 9989
06DNS healthA
pass
3 nameservers published.
RFC 2182
count 3
pass
SOA timers are sane.
RFC 1912
mname cns1.cloudpit.de.
rname hostmaster.dogado.de.
refresh 28800
retry 7200
expire 604800
minimum 600
info
Zone is not DNSSEC-signed.
RFC 9364
07BlacklistsA
pass
46.243.95.105 is not listed on SpamCop.
target 46.243.95.105
list SpamCop
pass
46.243.95.107 is not listed on SpamCop.
target 46.243.95.107
list SpamCop
pass
46.243.95.104 is not listed on SpamCop.
target 46.243.95.104
list SpamCop
pass
46.243.95.106 is not listed on SpamCop.
target 46.243.95.106
list SpamCop
pass
46.243.95.104 is not listed on GBUdb Truncate.
target 46.243.95.104
list GBUdb Truncate
pass
46.243.95.107 is not listed on GBUdb Truncate.
target 46.243.95.107
list GBUdb Truncate
pass
46.243.95.105 is not listed on GBUdb Truncate.
target 46.243.95.105
list GBUdb Truncate
pass
46.243.95.105 is not listed on PSBL.
target 46.243.95.105
list PSBL
pass
46.243.95.104 is not listed on Spamhaus ZEN.
target 46.243.95.104
list Spamhaus ZEN
pass
46.243.95.106 is not listed on GBUdb Truncate.
target 46.243.95.106
list GBUdb Truncate
pass
46.243.95.107 is not listed on Spamhaus ZEN.
target 46.243.95.107
list Spamhaus ZEN
pass
46.243.95.106 is not listed on Spamhaus ZEN.
target 46.243.95.106
list Spamhaus ZEN
pass
46.243.95.105 is not listed on Spamhaus ZEN.
target 46.243.95.105
list Spamhaus ZEN
pass
46.243.95.107 is not listed on PSBL.
target 46.243.95.107
list PSBL
pass
46.243.95.106 is not listed on PSBL.
target 46.243.95.106
list PSBL
pass
46.243.95.104 is not listed on PSBL.
target 46.243.95.104
list PSBL
pass
46.243.95.104 is not listed on Spamhaus AuthBL.
target 46.243.95.104
list Spamhaus AuthBL
pass
radolf.com is not listed on Spamhaus ZRD.
target radolf.com
list Spamhaus ZRD
pass
46.243.95.107 is not listed on Spamhaus AuthBL.
target 46.243.95.107
list Spamhaus AuthBL
pass
46.243.95.105 is not listed on Spamhaus AuthBL.
target 46.243.95.105
list Spamhaus AuthBL
pass
46.243.95.106 is not listed on Spamhaus AuthBL.
target 46.243.95.106
list Spamhaus AuthBL
pass
radolf.com is not listed on Spamhaus DBL.
target radolf.com
list Spamhaus DBL
08Bulk sending readinessA
warn
Partial bulk-sender setup, missing DKIM, DMARC. Gmail/Yahoo and Microsoft require all three for 5,000+ messages/day.
spf true
dkim false
dmarc false
threshold 5,000 messages/day
info
One-click List-Unsubscribe is a message-level header. Verify by sending a test message.
09TLSA
info
No DANE/TLSA records. DANE is not deployed for these mail servers.
RFC 7672
hosts mx03.secure-mailgate.com, mx04.secure-mailgate.com
pass
Negotiated TLSv1.3.
RFC 8996
tls_version TLSv1.3
host mx03.secure-mailgate.com
pass
Certificate valid for 48 more day(s).
not_after 2026-12-03T23:59:59+00:00
host mx03.secure-mailgate.com
pass
Certificate covers mx03.secure-mailgate.com.
RFC 6125
names *.secure-mailgate.com, secure-mailgate.com
host mx03.secure-mailgate.com
pass
Server presented a 3-certificate chain.
chain_len 3
host mx03.secure-mailgate.com
10MTA-STSA
info
No MTA-STS policy. Inbound mail is delivered without enforced TLS.
RFC 8461
warn
No TLS-RPT reporting address. TLS delivery failures go unreported.
RFC 8460
11BIMIA
info
No BIMI record. No brand logo is published for inboxes with BIMI support.
BIMI draft
12Email Verification Protocol
info
No Email Verification Protocol record. Browsers cannot verify addresses at this domain without sending an email.
EVP draft
SMTP (live probe)
info
No DANE/TLSA records. DANE is not deployed for these mail servers.
RFC 7672
hosts mx03.secure-mailgate.com, mx04.secure-mailgate.com
pass
2 of 2 MX host(s) reachable on port 25.
RFC 5321
reachable mx03.secure-mailgate.com, mx04.secure-mailgate.com
unreachable (none)
pass
Greeting is 220 with a hostname (minc01.secure-mailgate.com).
RFC 5321
banner 220 minc01.secure-mailgate.com ESMTP Exim 20261006.1000 Fri, 16 Oct 2026 21:27:25 +0200
pass
Banner hostname matches reverse DNS.
banner_fqdn minc01.secure-mailgate.com
ptr minc01.secure-mailgate.com
pass
EHLO accepted with 6 extension(s).
RFC 5321
extensions 8BITMIME, CHUNKING, DSN, HELP, SIZE, VRFY
info
Server does not advertise SMTPUTF8; internationalized (EAI) addresses may be rejected.
RFC 6531
info
Server does not advertise REQUIRETLS; senders cannot demand TLS-only delivery to this host.
RFC 8689
pass
STARTTLS is advertised in EHLO.
RFC 3207
pass
STARTTLS negotiated a working TLS session.
RFC 3207
tls_version TLSv1.3
pass
Negotiated TLSv1.3.
RFC 8996
tls_version TLSv1.3
host mx03.secure-mailgate.com
pass
Certificate valid for 48 more day(s).
not_after 2026-12-03T23:59:59+00:00
host mx03.secure-mailgate.com
pass
Certificate covers mx03.secure-mailgate.com.
RFC 6125
names *.secure-mailgate.com, secure-mailgate.com
host mx03.secure-mailgate.com
pass
Server presented a 3-certificate chain.
chain_len 3
host mx03.secure-mailgate.com
pass
Server refused external relay, as expected.
RFC 5321
reply 451 relay not permitted!
pass
Server accepts the null sender (MAIL FROM:<>), so bounces and DSNs can be delivered.
RFC 5321
reply 250 OK

About this report

This report grades the email and DNS setup of radolf.com against the relevant RFCs. Each check links to the standard behind the rule. A high grade means the common causes of spoofing and poor deliverability are covered. A grade is not a guarantee that every message reaches the inbox.

Frequently asked questions

What does the grade mean?
The grade summarizes how completely the domain implements the core email authentication and DNS standards. A and B mean the main protections (SPF, DKIM, DMARC, valid MX) are in place. Lower grades flag gaps that make spoofing easier or hurt deliverability. A missing MX record caps the grade at F, a weak SPF all-qualifier caps at D, and no DMARC caps at C.
How fresh is this report?
A report is a snapshot from when it was last scanned, kept as a shareable link. If you are fixing your setup, use the Re-scan button to run every check live again.
Why is the SMTP section still loading?
The live SMTP probe connects to the mail servers from a dedicated prober, which takes a few seconds and runs separately from the DNS checks. The results stream in when ready. If SMTP was not requested for this report, that section stays empty.
I own this domain and want to stop scan.mx checking it.
Domain owners can block scanning by publishing a DNS TXT record; see the opt-out page.

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