A
Scanned 5 hours ago. Re-scan for a fresh result after a fix.
Issues to fix
Results
01Mail exchangers (MX)A
pass
1 MX record(s) found.
records
| preference | exchange | ttl |
|---|---|---|
| 10 | cfoconsulting.pl | 3600 |
info
Only one MX host, a secondary MX adds delivery resilience.
warn
All MX hosts resolve to a single IP, no address-level redundancy.
ip 46.242.240.231
02Mail providerA
info
Mail is handled by cfoconsulting.pl, a self-hosted or independent provider.
provider cfoconsulting.pl
03SPFA
pass
SPF record present.
record v=spf1 ip4:46.242.240.231 include:_spf.google.com a mx -all
pass
SPF uses 3 of the 10 permitted DNS lookups.
lookups 3
pass
-all default policy.
04DKIMA
pass
Selector dkim key is ~2048-bit.
selector dkim
record v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w…IDAQAB
bits 2048
info
DKIM2 reuses these same selector._domainkey records and advertises no capability, so support cannot be detected from DNS. The 1 published key(s) carry over as they are. Adding an Ed25519 key (RFC 8463) prepares for it.
draft-ietf-dkim-dkim2-spec
keys 1
ed25519 false
05DMARCA
pass
DMARC record present.
record v=DMARC1; p=quarantine; rua=mailto:dmarc@cfoconsulting.pl; ruf=mailto:admin@cfoconsulting.pl; sp=none; fo=1;
pass
Enforcing policy p=quarantine.
p quarantine
rua true
warn
Subdomain policy sp=none is weaker than p=quarantine.
06DNS healthA
07BlacklistsA
pass
46.242.240.231 is not listed on SpamCop.
target 46.242.240.231
list SpamCop
pass
cfoconsulting.pl is not listed on Spamhaus DBL.
target cfoconsulting.pl
list Spamhaus DBL
pass
46.242.240.231 is not listed on Spamhaus ZEN.
target 46.242.240.231
list Spamhaus ZEN
pass
cfoconsulting.pl is not listed on Spamhaus ZRD.
target cfoconsulting.pl
list Spamhaus ZRD
pass
46.242.240.231 is not listed on Spamhaus AuthBL.
target 46.242.240.231
list Spamhaus AuthBL
pass
46.242.240.231 is not listed on GBUdb Truncate.
target 46.242.240.231
list GBUdb Truncate
pass
46.242.240.231 is not listed on PSBL.
target 46.242.240.231
list PSBL
08Bulk sending readinessA
pass
SPF, DKIM and DMARC are all present: the domain meets the Gmail/Yahoo and Microsoft bulk-sender authentication requirements (5,000+ messages/day).
spf true
dkim true
dmarc true
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.
hosts cfoconsulting.pl
pass
Negotiated TLSv1.3.
tls_version TLSv1.3
host cfoconsulting.pl
pass
Certificate valid for 195 more day(s).
not_after 2027-03-19T00:00:00+00:00
host cfoconsulting.pl
pass
Certificate covers cfoconsulting.pl.
names cfoconsulting.pl, www.cfoconsulting.pl
host cfoconsulting.pl
pass
Server presented a 4-certificate chain.
chain_len 4
host cfoconsulting.pl
10MTA-STSA
11BIMIA
info
No BIMI record. No brand logo is published for inboxes with BIMI support.
BIMI draft
SMTP (live probe)
info
No DANE/TLSA records. DANE is not deployed for these mail servers.
hosts cfoconsulting.pl
pass
1 of 1 MX host(s) reachable on port 25.
reachable cfoconsulting.pl
unreachable (none)
pass
Greeting is 220 with a hostname (cloudserver3202681-3202712.home.pl).
banner 220 cloudserver3202681-3202712.home.pl ESMTP Mailsystemx
pass
Banner hostname matches reverse DNS.
banner_fqdn cloudserver3202681-3202712.home.pl
ptr cloudserver3202681-3202712.home.pl
pass
EHLO accepted with 8 extension(s).
extensions 8BITMIME, AUTH, CHUNKING, DSN, ENHANCEDSTATUSCODES, ETRN, PIPELINING, SIZE
info
Server does not advertise SMTPUTF8; internationalized (EAI) addresses may be rejected.
info
Server does not advertise REQUIRETLS; senders cannot demand TLS-only delivery to this host.
pass
STARTTLS is advertised in EHLO.
pass
STARTTLS negotiated a working TLS session.
tls_version TLSv1.3
pass
Negotiated TLSv1.3.
tls_version TLSv1.3
host cfoconsulting.pl
pass
Certificate valid for 195 more day(s).
not_after 2027-03-19T00:00:00+00:00
host cfoconsulting.pl
pass
Certificate covers cfoconsulting.pl.
names cfoconsulting.pl, www.cfoconsulting.pl
host cfoconsulting.pl
pass
Server presented a 4-certificate chain.
chain_len 4
host cfoconsulting.pl
info
Open-relay test was inconclusive (server did not reach the recipient stage).
pass
Server accepts the null sender (MAIL FROM:<>), so bounces and DSNs can be delivered.
reply 250 2.1.0 Ok
About this report
This report grades the email and DNS setup of cfoconsulting.pl 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.