B
Scanned 16 days ago. Re-scan for a fresh result after a fix.
Issues to fix
- warnSPF does not include Microsoft 365's sending hosts (spf.protection.outlook.com), so Microsoft 365 mail may fail SPF.→
- warnMicrosoft 365 DKIM is not published for this domain (common for unconfigured custom domains).→
- warnp=none: monitoring only, unauthenticated mail is not blocked.→
- warnDeep include chain (nested includes are hard to audit and can push you toward the 10-lookup limit).→
- warnNo TLS-RPT reporting address. TLS delivery failures go unreported.→
- warnBanner hostname does not match reverse DNS.→
Results
01Mail exchangers (MX)A
pass
1 MX record(s) found.
records
| preference | exchange | ttl |
|---|---|---|
| 0 | newbasement-online.mail.protection.outlook.com | 300 |
info
Only one MX host, a secondary MX adds delivery resilience.
02Mail providerC
info
Mail provider: Microsoft 365.
provider microsoft365
warn
SPF does not include Microsoft 365's sending hosts (spf.protection.outlook.com), so Microsoft 365 mail may fail SPF.
expected spf.protection.outlook.com
warn
Microsoft 365 DKIM is not published for this domain (common for unconfigured custom domains).
selectors selector1, selector2
03SPFA
pass
SPF record present.
record v=spf1 include:secureserver.net -all
pass
SPF uses 3 of the 10 permitted DNS lookups.
lookups 3
warn
Deep include chain (nested includes are hard to audit and can push you toward the 10-lookup limit).
depth 3
pass
-all default policy.
04DKIMA
pass
Selector smtp key is ~2048-bit.
selector smtp
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;
warn
p=none: monitoring only, unauthenticated mail is not blocked.
p none
rua false
06DNS healthA
07BlacklistsA
info
IPv6 MX addresses are not checked against IP DNSBLs.
pass
52.101.170.1 is not listed on SpamCop.
target 52.101.170.1
list SpamCop
pass
52.101.170.2 is not listed on SpamCop.
target 52.101.170.2
list SpamCop
pass
52.101.168.0 is not listed on SpamCop.
target 52.101.168.0
list SpamCop
pass
52.101.170.0 is not listed on SpamCop.
target 52.101.170.0
list SpamCop
pass
52.101.170.2 is not listed on GBUdb Truncate.
target 52.101.170.2
list GBUdb Truncate
pass
52.101.170.1 is not listed on GBUdb Truncate.
target 52.101.170.1
list GBUdb Truncate
pass
52.101.170.0 is not listed on GBUdb Truncate.
target 52.101.170.0
list GBUdb Truncate
pass
52.101.170.2 is not listed on PSBL.
target 52.101.170.2
list PSBL
pass
52.101.168.0 is not listed on PSBL.
target 52.101.168.0
list PSBL
pass
52.101.170.2 is not listed on Spamhaus ZEN.
target 52.101.170.2
list Spamhaus ZEN
pass
52.101.168.0 is not listed on Spamhaus ZEN.
target 52.101.168.0
list Spamhaus ZEN
pass
52.101.170.1 is not listed on Spamhaus ZEN.
target 52.101.170.1
list Spamhaus ZEN
pass
52.101.170.0 is not listed on Spamhaus ZEN.
target 52.101.170.0
list Spamhaus ZEN
pass
52.101.168.0 is not listed on GBUdb Truncate.
target 52.101.168.0
list GBUdb Truncate
pass
52.101.170.2 is not listed on Spamhaus AuthBL.
target 52.101.170.2
list Spamhaus AuthBL
pass
newbasement.online is not listed on Spamhaus DBL.
target newbasement.online
list Spamhaus DBL
pass
newbasement.online is not listed on Spamhaus ZRD.
target newbasement.online
list Spamhaus ZRD
pass
52.101.170.1 is not listed on PSBL.
target 52.101.170.1
list PSBL
pass
52.101.170.1 is not listed on Spamhaus AuthBL.
target 52.101.170.1
list Spamhaus AuthBL
pass
52.101.170.0 is not listed on PSBL.
target 52.101.170.0
list PSBL
pass
52.101.170.0 is not listed on Spamhaus AuthBL.
target 52.101.170.0
list Spamhaus AuthBL
pass
52.101.168.0 is not listed on Spamhaus AuthBL.
target 52.101.168.0
list Spamhaus AuthBL
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 newbasement-online.mail.protection.outlook.com
pass
Negotiated TLSv1.3.
tls_version TLSv1.3
host newbasement-online.mail.protection.outlook.com
pass
Certificate valid for 145 more day(s).
not_after 2027-01-27T18:40:49+00:00
host newbasement-online.mail.protection.outlook.com
pass
Certificate covers newbasement-online.mail.protection.outlook.com.
names mail.protection.outlook.com, *.mail.eo.outlook.com, *.mail.protection.outlook.com, mail.messaging.microsoft.com, outlook.com, *.olc.protection.outlook.com, *.pamx1.hotmail.com, *.mail.protection.outlook.de, *.mx.microsoft, *.k-v1.mx.microsoft, *.n-v1.mx.microsoft, *.q-v1.mx.microsoft, *.y-v1.mx.microsoft, *.d-v1.mx.microsoft, *.e-v1.mx.microsoft, *.a-v1.mx.microsoft, *.r-v1.mx.microsoft, *.w-v1.mx.microsoft, *.p-v1.mx.microsoft, *.x-v1.mx.microsoft, *.j-v1.mx.microsoft, *.s-v1.mx.microsoft, *.c-v1.mx.microsoft, *.b-v1.mx.microsoft, *.f-v1.mx.microsoft, *.i-v1.mx.microsoft, *.t-v1.mx.microsoft, *.m-v1.mx.microsoft, *.o-v1.mx.microsoft, *.g-v1.mx.microsoft, *.v-v1.mx.microsoft, *.h-v1.mx.microsoft, *.l-v1.mx.microsoft, *.u-v1.mx.microsoft
host newbasement-online.mail.protection.outlook.com
pass
Server presented a 3-certificate chain.
chain_len 3
host newbasement-online.mail.protection.outlook.com
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 newbasement-online.mail.protection.outlook.com
pass
1 of 1 MX host(s) reachable on port 25.
reachable newbasement-online.mail.protection.outlook.com
unreachable (none)
pass
Greeting is 220 with a hostname (FR3PEPF00000485.mail.protection.outlook.com).
banner 220 FR3PEPF00000485.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Fri, 4 Sep 2026 15:57:33 +0000 [08DF049932C860A3]
warn
Banner hostname does not match reverse DNS.
banner_fqdn FR3PEPF00000485.mail.protection.outlook.com
ptr mail-fr6p281cu00202.inbound.protection.outlook.com
pass
EHLO accepted with 8 extension(s).
extensions 8BITMIME, BINARYMIME, CHUNKING, DSN, ENHANCEDSTATUSCODES, 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.
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 newbasement-online.mail.protection.outlook.com
pass
Certificate valid for 145 more day(s).
not_after 2027-01-27T18:40:49+00:00
host newbasement-online.mail.protection.outlook.com
pass
Certificate covers newbasement-online.mail.protection.outlook.com.
names mail.protection.outlook.com, *.mail.eo.outlook.com, *.mail.protection.outlook.com, mail.messaging.microsoft.com, outlook.com, *.olc.protection.outlook.com, *.pamx1.hotmail.com, *.mail.protection.outlook.de, *.mx.microsoft, *.k-v1.mx.microsoft, *.n-v1.mx.microsoft, *.q-v1.mx.microsoft, *.y-v1.mx.microsoft, *.d-v1.mx.microsoft, *.e-v1.mx.microsoft, *.a-v1.mx.microsoft, *.r-v1.mx.microsoft, *.w-v1.mx.microsoft, *.p-v1.mx.microsoft, *.x-v1.mx.microsoft, *.j-v1.mx.microsoft, *.s-v1.mx.microsoft, *.c-v1.mx.microsoft, *.b-v1.mx.microsoft, *.f-v1.mx.microsoft, *.i-v1.mx.microsoft, *.t-v1.mx.microsoft, *.m-v1.mx.microsoft, *.o-v1.mx.microsoft, *.g-v1.mx.microsoft, *.v-v1.mx.microsoft, *.h-v1.mx.microsoft, *.l-v1.mx.microsoft, *.u-v1.mx.microsoft
host newbasement-online.mail.protection.outlook.com
pass
Server presented a 3-certificate chain.
chain_len 3
host newbasement-online.mail.protection.outlook.com
pass
Server refused external relay, as expected.
reply 501 5.1.5 Recipient address reserved by RFC 2606 [FR3PEPF00000485.DEUP281.PROD.OUTLOOK.COM 2026-09-04T15:57:34.764Z 08DF049932C860A3]
pass
Server accepts the null sender (MAIL FROM:<>), so bounces and DSNs can be delivered.
reply 250 2.1.0 Sender OK
About this report
This report grades the email and DNS setup of newbasement.online 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.