Synpulse

synpulse.com

Industry
Consulting & audit
Headquarters
Zürich, Zurich
Type
private
Employees (approx.)
1,000
Checked on
19 October 2026
51/100Grade C

Protection against forged senders: not protected (monitoring only)

Points per criterion

  • MX 10 / 10
  • SPF 15 / 15
  • DKIM 20 / 20
  • DMARC 6 / 25
  • DNSSEC 0 / 10
  • Transport (MTA-STS/DANE) 0 / 15
  • TLS-RPT 0 / 5

Findings

  • ✕DMARC in monitoring mode only (p=none)

    p=none provides reports but does not reject a single forgery. The goal is p=reject.

  • !SPF close to the 10-lookup limit (10)

    One more sending service can break the limit. Flattening or subdomains for third parties create headroom.

  • !DKIM key below 2048 bits

    RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.

  • !DNSSEC not enabled

    Without DNSSEC, DNS answers can be forged in transit. DANE requires DNSSEC.

  • !No MTA-STS

    Without MTA-STS (or DANE) inbound encryption is not enforced; an attacker on the path can downgrade to plain text.

  • !No TLS reporting (TLS-RPT)

    Without TLS-RPT the organisation does not learn when senders fail to deliver encrypted.

  • iStrict DMARC alignment

    adkim=s or aspf=s requires exact domain matches. Secure, but demanding when sending from subdomains.

Check live in the Mail DNS Check →

Who runs the mail?

Mailbox provider
Microsoft 365
Provider jurisdiction
USA · MX: US
Detection confidence
100 / 100
Microsoft tenant
Managed · Synpulse
Tenant region
EU
Signals (8)
MXMicrosoft 365synpulse-com.mail.protection.outlook.com
SPFMicrosoft 365include:spf.protection.outlook.com
DKIMMicrosoft 365selector2 → selector2-synpulse-com._domainkey.spextranet.onmicrosoft.com
AutodiscoverMicrosoft 365autodiscover.outlook.com
Domain verificationMicrosoft 365MS=ms35690513
NetworkMicrosoft 365AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Domain verificationGoogle Workspacegoogle-site-verification=U3OOa40G2f6i7Zq
Entra IDMicrosoft 365Entra-ID-Tenant (Managed)

MX servers

PrefHostIPNetworkCountryTLSA
10 synpulse-com.mail.protection.outlook.com 52.101.209.28 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US –
52.101.103.140 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US
52.101.91.159 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US

SPF

v=spf1 include:spf.protection.outlook.com include:fsspfus.freshemail.io include:mailsenders.netsuite.com include:et._spf.pardot.com include:_spf.salesforce.com include:sendgrid.net include:essprod0.templafy-ess.com ip4:212.103.71.210/32 ip4:208.185.229.0/24 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 ip4:13.36.253.151 ip4:15.236.171.222 ip4:13.37.17.159 ip4:3.123.206.219 ip4:3.68.129.51 ip4:35.181.156.191 ip4:18.168.51.200 ip4:18.168.140.58 ip4:13.36.253.151 ip4:35.181.156.191 ip4:20.61.145.119 -all
all
-all
DNS lookups
10 / 10
Includes
spf.protection.outlook.comfsspfus.freshemail.iomailsenders.netsuite.comet._spf.pardot.com_spf.salesforce.comsendgrid.netessprod0.templafy-ess.com
Detected sending services
Microsoft 365, Freshworks, Salesforce, SendGrid
IPv4
1,548 addresses authorised directly

DMARC

v=DMARC1; p=none; rua=mailto:mail.protection@synpulse.com; ruf=mailto:mail.protection@synpulse.com; fo=1; adkim=s; aspf=s
Policy
p=none
Subdomains (sp)
inherits p=none
Share (pct)
100 %
Alignment DKIM/SPF
strict / strict
Aggregate reports (rua)
mail.protection@synpulse.com
Forensic reports (ruf)
mail.protection@synpulse.com

DKIM

SelectorKeydelegated to
s1 RSA 2048 s1.domainkey.u20472452.wl203.sendgrid.net
s2 RSA 1024 s2.domainkey.u20472452.wl203.sendgrid.net
selector2 RSA 1024 selector2-synpulse-com._domainkey.spextranet.onmicrosoft.com

Checked: 100 common selectors. Keys under custom selectors remain invisible.

Transport encryption

MTA-STS
missing
DANE
missing
DNSSEC
missing
TLS-RPT
missing
BIMI
missing

Verified services

From verification records in the domain TXT: services where the domain is verified.

Microsoft 365GoogleAppleAtlassianDocuSignMiro

History

  • Score 51 · DMARC none

All changes of this organisation in the change log →

Raw data
synpulse.com. IN MX 10 synpulse-com.mail.protection.outlook.com.
synpulse.com. IN TXT "v=spf1 include:spf.protection.outlook.com include:fsspfus.freshemail.io include:mailsenders.netsuite.com include:et._spf.pardot.com include:_spf.salesforce.com include:sendgrid.net include:essprod0.templafy-ess.com ip4:212.103.71.210/32 ip4:208.185.229.0/24 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 ip4:13.36.253.151 ip4:15.236.171.222 ip4:13.37.17.159 ip4:3.123.206.219 ip4:3.68.129.51 ip4:35.181.156.191 ip4:18.168.51.200 ip4:18.168.140.58 ip4:13.36.253.151 ip4:35.181.156.191 ip4:20.61.145.119 -all"
_dmarc.synpulse.com. IN TXT "v=DMARC1; p=none; rua=mailto:mail.protection@synpulse.com; ruf=mailto:mail.protection@synpulse.com; fo=1; adkim=s; aspf=s"

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