C
meridacancun.com
Score 77/100 · 2 failing, 5 warnings
Mail provider: meridacancun.com
Check another domain Re-scan

Scanned 1 hour 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
preferenceexchangettl
0mail.meridacancun.com14388
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 173.254.30.247
02Mail providerA
info
Mail is handled by meridacancun.com, a self-hosted or independent provider.
provider meridacancun.com
03SPFC
pass
SPF record present.
record v=spf1 +a +mx +ip4:173.254.30.247 +include:justhost.com ~all
fail
SPF requires 11 DNS lookups, over the limit of 10: a permerror.
RFC 7208 §4.6.4
lookups 11
warn
Deep include chain (nested includes are hard to audit and can push you toward the 10-lookup limit).
RFC 7208
depth 3
pass
~all default policy.
RFC 7208
04DKIMA
warn
Selector default key is ~1024-bit, rotate to 2048-bit.
RFC 8301
selector default
record v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQ…IDAQAB
bits 1024
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
05DMARCC
fail
No DMARC record: receivers have no policy for handling unauthenticated mail.
RFC 9989
06DNS healthA
pass
2 nameservers published.
RFC 2182
count 2
pass
SOA timers are sane.
RFC 1912
mname ns1.justhost.com.
rname root.just2038.justhost.com.
refresh 86400
retry 7200
expire 3600000
minimum 300
info
Zone is not DNSSEC-signed.
RFC 9364
07BlacklistsA
pass
173.254.30.247 is not listed on Spamhaus ZEN.
target 173.254.30.247
list Spamhaus ZEN
pass
meridacancun.com is not listed on Spamhaus DBL.
target meridacancun.com
list Spamhaus DBL
pass
meridacancun.com is not listed on Spamhaus ZRD.
target meridacancun.com
list Spamhaus ZRD
pass
173.254.30.247 is not listed on Spamhaus AuthBL.
target 173.254.30.247
list Spamhaus AuthBL
pass
173.254.30.247 is not listed on SpamCop.
target 173.254.30.247
list SpamCop
pass
173.254.30.247 is not listed on GBUdb Truncate.
target 173.254.30.247
list GBUdb Truncate
pass
173.254.30.247 is not listed on PSBL.
target 173.254.30.247
list PSBL
08Bulk sending readinessA
warn
Partial bulk-sender setup, missing DMARC. Gmail/Yahoo and Microsoft require all three for 5,000+ messages/day.
spf true
dkim true
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 mail.meridacancun.com
pass
Negotiated TLSv1.3.
RFC 8996
tls_version TLSv1.3
host mail.meridacancun.com
pass
Certificate valid for 51 more day(s).
not_after 2026-11-06T02:48:48+00:00
host mail.meridacancun.com
pass
Certificate covers mail.meridacancun.com.
RFC 6125
names mail.meridacancun.com, www.mail.meridacancun.com
host mail.meridacancun.com
pass
Server presented a 3-certificate chain.
chain_len 3
host mail.meridacancun.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
SMTP (live probe)
info
No DANE/TLSA records. DANE is not deployed for these mail servers.
RFC 7672
hosts mail.meridacancun.com
pass
1 of 1 MX host(s) reachable on port 25.
RFC 5321
reachable mail.meridacancun.com
unreachable (none)
pass
Greeting is 220 with a hostname (just2038.justhost.com).
RFC 5321
banner 220-just2038.justhost.com ESMTP Exim 4.100 #2 Tue, 15 Sep 2026 15:32:30 -0600
pass
Banner hostname matches reverse DNS.
banner_fqdn just2038.justhost.com
ptr just2038.justhost.com
pass
EHLO accepted with 7 extension(s).
RFC 5321
extensions 8BITMIME, AUTH, HELP, LIMITS, PIPECONNECT, PIPELINING, SIZE
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
Server advertises LIMITS, so senders can read its recipient and size ceilings up front.
RFC 9422
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 mail.meridacancun.com
pass
Certificate valid for 51 more day(s).
not_after 2026-11-06T02:48:48+00:00
host mail.meridacancun.com
pass
Certificate covers mail.meridacancun.com.
RFC 6125
names mail.meridacancun.com, www.mail.meridacancun.com
host mail.meridacancun.com
pass
Server presented a 3-certificate chain.
chain_len 3
host mail.meridacancun.com
pass
Server refused external relay, as expected.
RFC 5321
reply 550 "Sorry, you are sending to/from an address that has been blacklisted"
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 meridacancun.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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