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Analysis results:


4v.autos

MX MTA-STS | SPF | DKIM | DMARC | Deliverability


NS

4v.autos
ns1.abaxe.net
Serial:2024012613
87.98.137.10rDNS: ns1.abaxe.net
ns1.abaxe.com
Serial:2024012613
51.159.52.217rDNS: son5.abaxe.com

DNSSEC



A

4v.autos
@A37.187.144.140rDNS: ns1.4v.autos
AAAA
wwwA37.187.144.140rDNS: ns1.4v.autos
AAAA

SSL (HTTPS) certificate

CN4v.autos
Serial05CD88370B6F95D3C5B1DD80FCA437870481
From2026/06/10 20:07:43 GMT
To2026/09/08 20:07:42 GMT
IssuerUS Let's Encrypt YR1
Key usageTLS Web Server Authentication
Algorithmsha256WithRSAEncryption
SAN4v.autos, www.4v.autos

mta-sts.4v.autos
CNmta-sts.4v.autos
Serial06F4B4AF643C967FE3783C10A1A8694F0D5F
From2026/06/11 06:11:29 GMT
To2026/09/09 06:11:28 GMT
IssuerUS Let's Encrypt YR1
Key usageTLS Web Server Authentication
Algorithmsha256WithRSAEncryption


MX

4v.autos
1ns1.4v.autos
37.187.144.140rDNS: ns1.4v.autos
1 ns1.4v.autos
EHLO:220 ns1.4v.autos - Welcome to Qmail Toaster Ver. 1.03-3.3.11.qt.el9 SMTP Server ESMTP
250-ns1.4v.autos - Welcome to Qmail Toaster Ver. 1.03-3.3.11.qt.el9 SMTP Server
250-STARTTLS
250-PIPELINING
250-8BITMIME
250 SIZE 35971520
ProtocolTLSv1.2
CNns1.4v.autos
IssuerUS Let's Encrypt YR1
Key usageTLS Web Server Authentication
Serial:05af5f0a647e903c6887f05c22f80f07ee67
Public key(4096 bit)
Cipher suiteECDHE-RSA-AES256-GCM-SHA384
Algorithmsha256WithRSAEncryption
From2026/06/10 22:11:54 GMT
To2026/09/08 22:11:53 GMT
SANimap.4v.autos
ns1.4v.autos
pop.4v.autos
pop3.4v.autos
smtp.4v.autos

MTA-STS TLS-RPT

4v.autos
v=STSv1
id=2024021101
version:STSv1
mode:testing
mx:*.4v.autosns1.4v.autos
max_age:86400

DNS _mta-sts
DNS mta-sts
HTTPS mta-sts
Policy
MX listed in policy
MX authenticated by SMTP server
DNS _smtp._tls
mta-sts.txt

TLS-RPT
v=TLSRPTv1
rua=https://host.none.report/tlsrpt.php

SPF

4v.autos
"v=spf1 ip4:37.187.144.140 ip4:51.75.27.10 ~all" (TXT)
IPv4 37.187.144.140 authenticated ( ip4), rDNS: ns1.4v.autos,
 
ip437.187.144.140rDNS: ns1.4v.autos
ip451.75.27.10rDNS: ns100.abaxe.com


DKIM

dkim2._domainkey.4v.autos
v=DKIM1; k=rsa; p=
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3/rQpUHZ8wnjokqSz/Qo
4XOGDQcUMqpyaut+m118TSA0gUdbA1un+7vVFBwmqP7cmafpfNwl2c6U0ergBlDS
mTdvz+yoLL0LYMjTnR/Z89qHeZVoz0wVfF29ImhWjjv7rWCikuU+1Kw62tlPdFh3
EVb6yYXCV0NNAIFkkHW0hd4cjq9OnKQ8mLDeuMNjmfv3Slg6nxJOBVT+4r9UcOV9
tdoxD1PoP4jN6MNDppNO0Z9grAk79s+ldXlzqyF/ZJfgN/vwiubpqIA7P2Kxv9lA
cneGCShoKjfhBHCR2ZEJGx6e+ehmCmpy8FLh6kFTYLXyCtlRGy12F6IgeRn4F+S/
UQIDAQAB
RSA Public-Key: (2048 bit)

Deliverability

MXSPFDKIMDMARCBIMIMTA-STSTLS-RPT
ValidAlignedAuthenticatedPolicy
SPF
DKIM
DMARC
IP reverse
Blocklist


Perfect!
You can send emails.
You are protected against spoofing.


AuthorSender
@4v.autos@4v.autos
Outgoing mail server (EHLO)
ns1.4v.autos

RFC5322.From:4v.autos
MX
RFC5321.MailFrom:4v.autos
IP
37.187.144.140
ASN 16276 FR
OVH - OVH SAS, FR

37.187.144.140
PTR
ns1.4v.autos
A
37.187.144.140

FCrDNS....
EHLO.........
MailFrom...
From..........
️
reversens1.4v.autos
blocklists
SPF aligned
DKIM header.d:4v.autos
keydkim2
valid, aligned key
signature pass [simulation]
DMARC policyreject
DMARC dispositionpass [delivered]
Bulk sending (compatible)


BIMI

default._bimi.4v.autos


DMARC

_dmarc.4v.autos
"v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc@4v.autos"


Tags published
vDMARC1version
prejectpolicy for the domain, none (no rule, testing only), quarantine (marked as spam), reject (rejected)
sprejectpolicy for an existing subdomain
rua3mailto:dmarc@4v.autos
emails receiving aggregate reports, rua (mailto:email@domain.com).

adkimrDKIM alignment, r (relax) by default, s (strict)
aspfrSPF alignment, r (relax) by default, s (strict)
fo40sending forensic reports (ruf) if error, 0 (DKIM + SPF) by default, 1 (DKIM or SPF), d (DKIM), s (SPF)
np2rejectpolicy for a non-existent subdomain
pct1100percentage of regulated emails, 100% by default
psd2uPublic Suffix Domains, u (according to DNS tree) by default, n (no, canonical domain), y (yes, canonical subdomains)
rf1afrfreport format, default afrf, unused iodef
ri186400report sending interval in seconds, 86400 (1 day) by default, other values ​​generally ignored
ruf4emails receiving forensic reports, ruf (mailto:email@domain.com)
t2ntest mode, n (no) by default, y (yes)
 
DMARC 2.0 2026. en savoir plus
1Outdated tags.
2New tags.
3External domain permission required.
4Useless, reports very rarely transmitted (almost exclusively via LinkedIn).




4v.autos

MX MTA-STS | SPF | DKIM | DMARC | Deliverability


FR | EN