C
Scanned 3 hours ago. Re-scan for a fresh result after a fix.
Issues to fix
- failSTARTTLS is not advertised; mail to this host is delivered in cleartext.→
- warnExternal report destination yandex.ru has not authorized drtall.com, reports are silently dropped.→
- warnMX host mail.drtall.com (165.227.252.21) has no PTR record, many receivers reject senders without reverse DNS.→
- warnAll MX hosts resolve to a single IP, no address-level redundancy.→
- warnpct=100 is deprecated in DMARCbis, apply the policy to all mail.→
- warnNo TLS-RPT reporting address. TLS delivery failures go unreported.→
- warnGreeting is 220 but announces no FQDN.→
Results
01Mail exchangers (MX)A
pass
1 MX record(s) found.
records
| preference | exchange | ttl |
|---|---|---|
| 10 | mail.drtall.com | 3603 |
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 165.227.252.21
02Mail providerA
info
Mail is handled by drtall.com, a self-hosted or independent provider.
provider drtall.com
03SPFA
pass
SPF record present.
record v=spf1 ip4:1.1.1.1 -all
pass
SPF uses 0 of the 10 permitted DNS lookups.
lookups 0
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=reject; rua=mailto:reporterdmarc@yandex.ru; ruf=mailto:reporterdmarc@yandex.ru; rf=afrf; sp=reject; fo=1; pct=100; ri=604800; adkim=s; aspf=s
pass
Enforcing policy p=reject.
p reject
rua true
warn
pct=100 is deprecated in DMARCbis, apply the policy to all mail.
info
Strict alignment (adkim/aspf = s) is enforced.
warn
External report destination yandex.ru has not authorized drtall.com, reports are silently dropped.
destination yandex.ru
authRecord drtall.com._report._dmarc.yandex.ru
06DNS healthA
warn
MX host mail.drtall.com (165.227.252.21) has no PTR record, many receivers reject senders without reverse DNS.
host mail.drtall.com
ip 165.227.252.21
pass
3 nameservers published.
count 3
pass
SOA timers are sane.
mname ns1.dnsowl.com.
rname hostmaster.dnsowl.com.
refresh 7200
retry 1800
expire 1209600
minimum 600
info
Zone is not DNSSEC-signed.
07BlacklistsA
pass
drtall.com is not listed on Spamhaus ZRD.
target drtall.com
list Spamhaus ZRD
pass
165.227.252.21 is not listed on Spamhaus ZEN.
target 165.227.252.21
list Spamhaus ZEN
pass
165.227.252.21 is not listed on SpamCop.
target 165.227.252.21
list SpamCop
pass
drtall.com is not listed on Spamhaus DBL.
target drtall.com
list Spamhaus DBL
pass
165.227.252.21 is not listed on Spamhaus AuthBL.
target 165.227.252.21
list Spamhaus AuthBL
pass
165.227.252.21 is not listed on PSBL.
target 165.227.252.21
list PSBL
pass
165.227.252.21 is not listed on GBUdb Truncate.
target 165.227.252.21
list GBUdb Truncate
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.drtall.com
10MTA-STSA
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.
hosts mail.drtall.com
pass
1 of 1 MX host(s) reachable on port 25.
reachable mail.drtall.com
unreachable (none)
warn
Greeting is 220 but announces no FQDN.
banner 220 buildkitsandbox ESMTP Haraka/3.2.1 ready (CAD29B)
info
Could not compare banner hostname to reverse DNS.
banner_fqdn
ptr
pass
EHLO accepted with 4 extension(s).
extensions 8BITMIME, PIPELINING, SIZE, SMTPUTF8
pass
Server advertises SMTPUTF8, so it accepts internationalized (EAI) email addresses.
info
Server does not advertise REQUIRETLS; senders cannot demand TLS-only delivery to this host.
fail
STARTTLS is not advertised; mail to this host is delivered in cleartext.
pass
Server refused external relay, as expected.
reply 550 recipient <relay-test@example.com> denied
pass
Server accepts the null sender (MAIL FROM:<>), so bounces and DSNs can be delivered.
reply 250 sender <> OK
About this report
This report grades the email and DNS setup of drtall.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.