A
Scanned 7 hours ago. Re-scan for a fresh result after a fix.
Issues to fix
- failMultiple SPF records: a permanent error (permerror), SPF will be ignored.→
- failMultiple DMARC records at _dmarc: the policy is ignored.→
- warnMicrosoft 365 DKIM is not published for this domain (common for unconfigured custom domains).→
- warnp=none: monitoring only, unauthenticated mail is not blocked.→
- warnPartial bulk-sender setup, missing SPF, DMARC. Gmail/Yahoo and Microsoft require all three for 5,000+ messages/day.→
- warnSelector default key is ~1024-bit, rotate to 2048-bit.→
- warnNo TLS-RPT reporting address. TLS delivery failures go unreported.→
Results
01Mail exchangers (MX)A
pass
1 MX record(s) found.
records
| preference | exchange | ttl |
|---|---|---|
| 0 | markandson-net.mail.protection.outlook.com | 7200 |
info
Only one MX host, a secondary MX adds delivery resilience.
02Mail providerB
info
Mail provider: Microsoft 365.
provider microsoft365
warn
Microsoft 365 DKIM is not published for this domain (common for unconfigured custom domains).
selectors selector1, selector2
03SPFC
fail
Multiple SPF records: a permanent error (permerror), SPF will be ignored.
records v=spf1 include:spf.protection.outlook.com ~all, v=spf1 include:spf.protection.outlook.com -all
pass
SPF uses 1 of the 10 permitted DNS lookups.
lookups 1
pass
~all default policy.
04DKIMA
warn
Selector default key is ~1024-bit, rotate to 2048-bit.
selector default
record v=DKIM1;g=*;k=rsa;p=MIGfMA0GCSqGSIb3DQ…IDAQAB
bits 1024
05DMARCD
fail
Multiple DMARC records at _dmarc: the policy is ignored.
records v=DMARC1; p=none; rua=mailto:jmh326@markandson.net,mailto:68c9b40f@mxtoolbox.dmarc-report.com; ruf=mailto:68c9b40f@forensics.dmarc-report.com, v=DMARC1; p=none; rua=mailto:jmh326@markandson.net
warn
p=none: monitoring only, unauthenticated mail is not blocked.
p none
06DNS healthA
07BlacklistsA
info
IPv6 MX addresses are not checked against IP DNSBLs.
pass
52.101.10.14 is not listed on SpamCop.
target 52.101.10.14
list SpamCop
pass
52.101.41.22 is not listed on SpamCop.
target 52.101.41.22
list SpamCop
pass
52.101.8.34 is not listed on SpamCop.
target 52.101.8.34
list SpamCop
pass
52.101.41.54 is not listed on SpamCop.
target 52.101.41.54
list SpamCop
pass
52.101.41.22 is not listed on PSBL.
target 52.101.41.22
list PSBL
pass
52.101.10.14 is not listed on GBUdb Truncate.
target 52.101.10.14
list GBUdb Truncate
pass
markandson.net is not listed on Spamhaus ZRD.
target markandson.net
list Spamhaus ZRD
pass
52.101.41.54 is not listed on PSBL.
target 52.101.41.54
list PSBL
pass
52.101.8.34 is not listed on GBUdb Truncate.
target 52.101.8.34
list GBUdb Truncate
pass
52.101.10.14 is not listed on PSBL.
target 52.101.10.14
list PSBL
pass
52.101.41.54 is not listed on GBUdb Truncate.
target 52.101.41.54
list GBUdb Truncate
pass
52.101.8.34 is not listed on PSBL.
target 52.101.8.34
list PSBL
pass
52.101.41.54 is not listed on Spamhaus AuthBL.
target 52.101.41.54
list Spamhaus AuthBL
pass
52.101.41.22 is not listed on GBUdb Truncate.
target 52.101.41.22
list GBUdb Truncate
pass
markandson.net is not listed on Spamhaus DBL.
target markandson.net
list Spamhaus DBL
pass
52.101.8.34 is not listed on Spamhaus AuthBL.
target 52.101.8.34
list Spamhaus AuthBL
pass
52.101.10.14 is not listed on Spamhaus AuthBL.
target 52.101.10.14
list Spamhaus AuthBL
pass
52.101.41.22 is not listed on Spamhaus AuthBL.
target 52.101.41.22
list Spamhaus AuthBL
pass
52.101.8.34 is not listed on Spamhaus ZEN.
target 52.101.8.34
list Spamhaus ZEN
pass
52.101.41.22 is not listed on Spamhaus ZEN.
target 52.101.41.22
list Spamhaus ZEN
pass
52.101.10.14 is not listed on Spamhaus ZEN.
target 52.101.10.14
list Spamhaus ZEN
pass
52.101.41.54 is not listed on Spamhaus ZEN.
target 52.101.41.54
list Spamhaus ZEN
08Bulk sending readinessA
warn
Partial bulk-sender setup, missing SPF, DMARC. Gmail/Yahoo and Microsoft require all three for 5,000+ messages/day.
spf false
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.
hosts markandson-net.mail.protection.outlook.com
10MTA-STSA
11BIMIA
info
No BIMI record. No brand logo is published for inboxes with BIMI support.
BIMI draft
About this report
This report grades the email and DNS setup of markandson.net 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.