A
air7seas.us
Score 99/100 · 0 failing, 3 warnings
Mail provider: Google Workspace
Check another domain Re-scan

Scanned 4 days ago. Re-scan for a fresh result after a fix.

Issues to fix

Results

01Mail exchangers (MX)A
pass
5 MX record(s) found.
records
preferenceexchangettl
1aspmx.l.google.com3600
5alt1.aspmx.l.google.com3600
5alt2.aspmx.l.google.com3600
10alt3.aspmx.l.google.com3600
10alt4.aspmx.l.google.com3600
info
Multiple MX hosts share a preference, delivery load-balances across them.
02Mail providerA
info
Mail provider: Google Workspace.
provider google
03SPFA
pass
SPF record present.
record v=spf1 include:_spf.google.com include:spf.em.secureserver.net include:zcsend.in -all
pass
SPF uses 3 of the 10 permitted DNS lookups.
RFC 7208 §4.6.4
lookups 3
pass
-all default policy.
RFC 7208
04DKIMA
warn
Selector google key is ~1024-bit, rotate to 2048-bit.
RFC 8301
selector google
record v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQ…IDAQAB
bits 1024
pass
Selector s2 key is ~2048-bit.
selector s2
record k=rsa; t=s; p=MIIBIjANBgkqhkiG9w…IDAQAB
bits 2048
pass
Selector s1 key is ~2048-bit.
selector s1
record k=rsa; t=s; p=MIIBIjANBgkqhkiG9w…IDAQAB
bits 2048
05DMARCA
pass
DMARC record present.
record v=DMARC1; p=reject; rua=mailto:dmarc@air7seas.us
pass
Enforcing policy p=reject.
06DNS healthA
pass
2 nameservers published.
RFC 2182
count 2
pass
SOA timers are sane.
RFC 1912
mname ns35.domaincontrol.com.
rname dns.jomax.net.
refresh 28800
retry 7200
expire 604800
minimum 600
info
Zone is not DNSSEC-signed.
RFC 9364
07BlacklistsA
info
IPv6 MX addresses are not checked against IP DNSBLs.
pass
192.178.211.26 is not listed on SpamCop.
target 192.178.211.26
list SpamCop
pass
172.253.158.27 is not listed on SpamCop.
target 172.253.158.27
list SpamCop
pass
173.194.41.26 is not listed on SpamCop.
target 173.194.41.26
list SpamCop
pass
192.178.230.27 is not listed on SpamCop.
target 192.178.230.27
list SpamCop
pass
192.178.211.26 is not listed on GBUdb Truncate.
target 192.178.211.26
list GBUdb Truncate
pass
108.177.125.26 is not listed on SpamCop.
target 108.177.125.26
list SpamCop
pass
173.194.41.26 is not listed on GBUdb Truncate.
target 173.194.41.26
list GBUdb Truncate
pass
172.253.158.27 is not listed on GBUdb Truncate.
target 172.253.158.27
list GBUdb Truncate
pass
192.178.230.27 is not listed on GBUdb Truncate.
target 192.178.230.27
list GBUdb Truncate
pass
108.177.125.26 is not listed on GBUdb Truncate.
target 108.177.125.26
list GBUdb Truncate
pass
192.178.211.26 is not listed on Spamhaus ZEN.
target 192.178.211.26
list Spamhaus ZEN
pass
173.194.41.26 is not listed on Spamhaus ZEN.
target 173.194.41.26
list Spamhaus ZEN
pass
108.177.125.26 is not listed on PSBL.
target 108.177.125.26
list PSBL
pass
192.178.230.27 is not listed on PSBL.
target 192.178.230.27
list PSBL
pass
172.253.158.27 is not listed on Spamhaus ZEN.
target 172.253.158.27
list Spamhaus ZEN
pass
108.177.125.26 is not listed on Spamhaus ZEN.
target 108.177.125.26
list Spamhaus ZEN
pass
192.178.230.27 is not listed on Spamhaus ZEN.
target 192.178.230.27
list Spamhaus ZEN
pass
air7seas.us is not listed on Spamhaus DBL.
target air7seas.us
list Spamhaus DBL
pass
192.178.211.26 is not listed on Spamhaus AuthBL.
target 192.178.211.26
list Spamhaus AuthBL
pass
173.194.41.26 is not listed on PSBL.
target 173.194.41.26
list PSBL
pass
air7seas.us is not listed on Spamhaus ZRD.
target air7seas.us
list Spamhaus ZRD
pass
173.194.41.26 is not listed on Spamhaus AuthBL.
target 173.194.41.26
list Spamhaus AuthBL
pass
172.253.158.27 is not listed on PSBL.
target 172.253.158.27
list PSBL
pass
172.253.158.27 is not listed on Spamhaus AuthBL.
target 172.253.158.27
list Spamhaus AuthBL
pass
108.177.125.26 is not listed on Spamhaus AuthBL.
target 108.177.125.26
list Spamhaus AuthBL
pass
192.178.230.27 is not listed on Spamhaus AuthBL.
target 192.178.230.27
list Spamhaus AuthBL
pass
192.178.211.26 is not listed on PSBL.
target 192.178.211.26
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.
RFC 7672
hosts aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com
pass
Negotiated TLSv1.3.
RFC 8996
tls_version TLSv1.3
host aspmx.l.google.com
pass
Certificate valid for 47 more day(s).
not_after 2026-09-21T08:39:15+00:00
host aspmx.l.google.com
pass
Certificate covers aspmx.l.google.com.
RFC 6125
names mx.google.com, smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, gmail-smtp-in.l.google.com, alt1.gmail-smtp-in.l.google.com, alt2.gmail-smtp-in.l.google.com, alt3.gmail-smtp-in.l.google.com, alt4.gmail-smtp-in.l.google.com, gmr-smtp-in.l.google.com, alt1.gmr-smtp-in.l.google.com, alt2.gmr-smtp-in.l.google.com, alt3.gmr-smtp-in.l.google.com, alt4.gmr-smtp-in.l.google.com, mx1.smtp.goog, mx2.smtp.goog, mx3.smtp.goog, mx4.smtp.goog, aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com, aspmx5.googlemail.com, gmr-mx.google.com
host aspmx.l.google.com
pass
Server presented a 3-certificate chain.
chain_len 3
host aspmx.l.google.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 aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com
pass
5 of 5 MX host(s) reachable on port 25.
RFC 5321
reachable aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com
unreachable (none)
pass
Greeting is 220 with a hostname (mx.google.com).
RFC 5321
banner 220 mx.google.com ESMTP a92af1059eb24-13fca5413ddsi8246720c88.25 - gsmtp
warn
Banner hostname does not match reverse DNS.
banner_fqdn mx.google.com
ptr lcbomp-in-f26.1e100.net
pass
EHLO accepted with 6 extension(s).
RFC 5321
extensions 8BITMIME, CHUNKING, ENHANCEDSTATUSCODES, PIPELINING, SIZE, SMTPUTF8
pass
Server advertises SMTPUTF8, so it accepts internationalized (EAI) email addresses.
RFC 6531
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 aspmx.l.google.com
pass
Certificate valid for 47 more day(s).
not_after 2026-09-21T08:39:15+00:00
host aspmx.l.google.com
pass
Certificate covers aspmx.l.google.com.
RFC 6125
names mx.google.com, smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, gmail-smtp-in.l.google.com, alt1.gmail-smtp-in.l.google.com, alt2.gmail-smtp-in.l.google.com, alt3.gmail-smtp-in.l.google.com, alt4.gmail-smtp-in.l.google.com, gmr-smtp-in.l.google.com, alt1.gmr-smtp-in.l.google.com, alt2.gmr-smtp-in.l.google.com, alt3.gmr-smtp-in.l.google.com, alt4.gmr-smtp-in.l.google.com, mx1.smtp.goog, mx2.smtp.goog, mx3.smtp.goog, mx4.smtp.goog, aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com, aspmx5.googlemail.com, gmr-mx.google.com
host aspmx.l.google.com
pass
Server presented a 3-certificate chain.
chain_len 3
host aspmx.l.google.com
pass
Server refused external relay, as expected.
RFC 5321
reply 550-5.1.1 The email account that you tried to reach does not exist. Please try
pass
Server accepts the null sender (MAIL FROM:<>), so bounces and DSNs can be delivered.
RFC 5321
reply 250 2.1.0 OK a92af1059eb24-13fca5413ddsi8246720c88.25 - gsmtp

About this report

This report grades the email and DNS setup of air7seas.us 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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