B
Scanned 2 days 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 |
|---|---|---|
| 0 | mail.zharkov.xyz | 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 178.208.89.130
02Mail providerA
info
Mail is handled by zharkov.xyz, a self-hosted or independent provider.
provider zharkov.xyz
03SPFA
pass
SPF record present.
record v=spf1 ip4:178.208.89.130 -all
pass
SPF uses 0 of the 10 permitted DNS lookups.
lookups 0
pass
-all default policy.
04DKIMA
pass
Selector default key is ~2048-bit.
selector default
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=none; rua=mailto:vladislav@zharkov.xyz; adkim=s; aspf=s
warn
p=none: monitoring only, unauthenticated mail is not blocked.
p none
rua true
info
Strict alignment (adkim/aspf = s) is enforced.
06DNS healthA
07BlacklistsA
pass
178.208.89.130 is not listed on SpamCop.
target 178.208.89.130
list SpamCop
pass
178.208.89.130 is not listed on Spamhaus AuthBL.
target 178.208.89.130
list Spamhaus AuthBL
pass
178.208.89.130 is not listed on Spamhaus ZEN.
target 178.208.89.130
list Spamhaus ZEN
pass
zharkov.xyz is not listed on Spamhaus DBL.
target zharkov.xyz
list Spamhaus DBL
pass
zharkov.xyz is not listed on Spamhaus ZRD.
target zharkov.xyz
list Spamhaus ZRD
pass
178.208.89.130 is not listed on GBUdb Truncate.
target 178.208.89.130
list GBUdb Truncate
pass
178.208.89.130 is not listed on PSBL.
target 178.208.89.130
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 mail.zharkov.xyz
pass
Negotiated TLSv1.3.
tls_version TLSv1.3
host mail.zharkov.xyz
pass
Certificate valid for 37 more day(s).
not_after 2026-10-10T11:44:18+00:00
host mail.zharkov.xyz
pass
Certificate covers mail.zharkov.xyz.
names *.zharkov.xyz, zharkov.xyz
host mail.zharkov.xyz
pass
Server presented a 4-certificate chain.
chain_len 4
host mail.zharkov.xyz
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 mail.zharkov.xyz
pass
1 of 1 MX host(s) reachable on port 25.
reachable mail.zharkov.xyz
unreachable (none)
pass
Greeting is 220 with a hostname (mail.zharkov.xyz).
banner 220 mail.zharkov.xyz ESMTP Service Ready
pass
Banner hostname matches reverse DNS.
banner_fqdn mail.zharkov.xyz
ptr mail.zharkov.xyz
pass
EHLO accepted with 8 extension(s).
extensions 8BITMIME, CHUNKING, ENHANCEDSTATUSCODES, LIMITS, PIPELINING, REQUIRETLS, SIZE, SMTPUTF8
pass
Server advertises SMTPUTF8, so it accepts internationalized (EAI) email addresses.
pass
Server advertises REQUIRETLS, so senders can require TLS for a message instead of falling back to cleartext.
pass
Server advertises LIMITS, so senders can read its recipient and size ceilings up front.
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 mail.zharkov.xyz
pass
Certificate valid for 37 more day(s).
not_after 2026-10-10T11:44:18+00:00
host mail.zharkov.xyz
pass
Certificate covers mail.zharkov.xyz.
names *.zharkov.xyz, zharkov.xyz
host mail.zharkov.xyz
pass
Server presented a 4-certificate chain.
chain_len 4
host mail.zharkov.xyz
pass
Server refused external relay, as expected.
reply 550 5.1.1 User doesn't exist (msg ID = 81f3d14a)
pass
Server accepts the null sender (MAIL FROM:<>), so bounces and DSNs can be delivered.
reply 250 2.0.0 Roger, accepting mail from <>
About this report
This report grades the email and DNS setup of zharkov.xyz 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.