A
Scanned 20 days 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
| preference | exchange | ttl |
|---|---|---|
| 10 | mail13.netbeat.de | 300 |
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 83.243.58.165
02Mail providerA
info
Mail is handled by netbeat.de, a self-hosted or independent provider.
provider netbeat.de
03SPFA
pass
SPF record present.
record v=spf1 a mx ip4:46.151.162.0/24 ip4:46.151.164.0/24 ip4:83.243.58.0/24 ip6:2a00:19e0:c0de::/48 -all
pass
SPF uses 2 of the 10 permitted DNS lookups.
lookups 2
pass
-all default policy.
04DKIMA
pass
Selector default key is ~2048-bit.
selector default
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:rua@atlantic-invest.de; adkim=s; aspf=s
pass
Enforcing policy p=reject.
p reject
rua true
info
Strict alignment (adkim/aspf = s) is enforced.
06DNS healthA
07BlacklistsA
pass
83.243.58.165 is not listed on SpamCop.
target 83.243.58.165
list SpamCop
pass
atlantic-invest.de is not listed on Spamhaus DBL.
target atlantic-invest.de
list Spamhaus DBL
pass
atlantic-invest.de is not listed on Spamhaus ZRD.
target atlantic-invest.de
list Spamhaus ZRD
pass
83.243.58.165 is not listed on Spamhaus AuthBL.
target 83.243.58.165
list Spamhaus AuthBL
pass
83.243.58.165 is not listed on Spamhaus ZEN.
target 83.243.58.165
list Spamhaus ZEN
pass
83.243.58.165 is not listed on PSBL.
target 83.243.58.165
list PSBL
pass
83.243.58.165 is not listed on GBUdb Truncate.
target 83.243.58.165
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 mail13.netbeat.de
pass
Negotiated TLSv1.2.
tls_version TLSv1.2
host mail13.netbeat.de
pass
Certificate valid for 189 more day(s).
not_after 2027-04-10T23:59:59+00:00
host mail13.netbeat.de
pass
Certificate covers mail13.netbeat.de.
names *.netbeat.de, netbeat.de
host mail13.netbeat.de
pass
Server presented a 3-certificate chain.
chain_len 3
host mail13.netbeat.de
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 mail13.netbeat.de
pass
1 of 1 MX host(s) reachable on port 25.
reachable mail13.netbeat.de
unreachable (none)
pass
Greeting is 220 with a hostname (mail7.netbeat.de).
banner 220 mail7.netbeat.de ESMTP Postfix (Netbeat)
warn
Banner hostname does not match reverse DNS.
banner_fqdn mail7.netbeat.de
ptr mail13.netbeat.de
pass
EHLO accepted with 7 extension(s).
extensions 8BITMIME, DSN, ENHANCEDSTATUSCODES, ETRN, PIPELINING, SIZE, VRFY
info
Server does not advertise SMTPUTF8; internationalized (EAI) addresses may be rejected.
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 TLSv1.2
pass
Negotiated TLSv1.2.
tls_version TLSv1.2
host mail13.netbeat.de
pass
Certificate valid for 189 more day(s).
not_after 2027-04-10T23:59:59+00:00
host mail13.netbeat.de
pass
Certificate covers mail13.netbeat.de.
names *.netbeat.de, netbeat.de
host mail13.netbeat.de
pass
Server presented a 3-certificate chain.
chain_len 3
host mail13.netbeat.de
pass
Server refused external relay, as expected.
reply 556 5.1.10 <relay-test@example.com>: Recipient address rejected: Domain example.com does not accept mail (nullMX)
pass
Server accepts the null sender (MAIL FROM:<>), so bounces and DSNs can be delivered.
reply 250 2.1.0 Ok
About this report
This report grades the email and DNS setup of atlantic-invest.de 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.