19
records
Name Servers
TTL
vsb.cz. 1200 IN NS decsys.vsb.cz. vsb.cz. 1200 IN NS nsa.ces.net. vsb.cz. 1200 IN NS sun.uakom.sk.
Mail Servers
TTL
vsb.cz. 1200 IN MX 20 postak.vsb.cz. vsb.cz. 1200 IN MX 30 mx30.vsb.cz. vsb.cz. 1200 IN MX 40 smtp.vsb.cz.
SOA Details
TTL
20m
SOA
Responsible
hostmaster.vsb.cz
SOA
Serial
260731007
SOA
Times
Refresh
1h
Retry
1h
Expire
7d
Minimum TTL
10m
vsb.cz. 1200 IN SOA decsys.vsb.cz. hostmaster.vsb.cz. 260731007 3600 3600 604800 600
Certificate Authority Authorization
TTL
20m
CAA
—
0
issuewild
;
20m
vsb.cz. 1200 IN CAA 0 issue "harica.gr" vsb.cz. 1200 IN CAA 0 issue "letsencrypt.org" vsb.cz. 1200 IN CAA 0 issuewild ";"
DMARC
TTL
DMARC
Policy
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
none
quarantine
reject
20m
DMARC
Subdomain Policy
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
none
quarantine
reject
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
mailto:[email protected]
Forensic (per-failure) reports. Often omitted for privacy or volume.
vsb.cz. 1200 IN DMARC v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=r; adkim=r; fo=1;
DKIM
TTL
DKIM
Selector
default
v=DKIM1
k=rsa
20m
Public Key
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArRvUnkRuviK5...
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArRvUnkRuviK55IyyLSGawBMbZRTuQ9MDgQ8BYuAfu5vkQxOHNkAEIVVeo8znW4noYSQVP/k693E/T19tlivUTqK/EQxWNQ/5T2n2/nM0OkS10O8LKBtmEXvOFmpesjEkMfu8Np8XmLnDpiA5hecXqkHO3hjwnketgr/CReuqpnxRxylafmkfcUZEcNnpVfK1d93JWjJLGdyHy6bw5SEECzQPSUjKAYXoyXHvYt/oSgwT7enFIq5nClNhgAKWoGXQWw9+zgM0CpKJ0vRzmQk+nHdFllGU5xOppsrG+XliPBCQGYdPWUyHCuWUqTv1AqkBl3wBqltP0Kleamlrp1lt3wIDAQAB
vsb.cz. 1200 IN DKIM v=DKIM1; h=sha256; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArRvUnkRuviK55IyyLSGawBMbZRTuQ9MDgQ8BYuAfu5vkQxOHNkAEIVVeo8znW4noYSQVP/k693E/T19tlivUTqK/EQxWNQ/5T2n2/nM0OkS10O8LKBtmEXvOFmpesjEkMfu8Np8XmLnDpiA5hecXqkHO3hjwnketgr/CReuqpnxRxylafmkfcUZEcNnpVfK1d93JWjJLGdyHy6bw5SEECzQPSUjKAYXoyXHvYt/oSgwT7enFIq5nClNhgAKWoGXQWw9+zgM0CpKJ0vRzmQk+nHdFllGU5xOppsrG+XliPBCQGYdPWUyHCuWUqTv1AqkBl3wBqltP0Kleamlrp1lt3wIDAQAB
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | ip4 |
|
||
| + Pass | ip4 |
|
||
| + Pass | ip4 |
|
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| + Pass | ip4 |
|
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| + Pass | ip4 |
|
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| + Pass | ip4 |
|
||
| + Pass | ip4 |
|
||
| + Pass | ip6 |
|
||
| + Pass | ip6 |
|
||
| + Pass | ip6 |
|
||
| + Pass | ip6 |
|
||
| + Pass | ip6 |
|
||
| + Pass | ip6 |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| ~ Softfail | all |
—
|
|
20m
vsb.cz. 1200 IN TXT "v=spf1 ip4:158.196.149.35 ip4:158.196.149.77 ip4:158.196.149.150 ip4:158.196.149.155 ip4:158.196.149.213 ip4:158.196.149.214 ip4:195.113.113.86 ip6:2001:718:1001:149::35 ip6:2001:718:1001:149::77 ip6:2001:718:1001:149::150 ip6:2001:718:1001:149::155 ip6:2001:718:1001:149::213 ip6:2001:718:1001:149::214 include:spf.protection.outlook.com include:_spf.google.com ~all"
Text Content
TTL
atlassian-domain-verification=PVJmH5mprRkDMCb9DCk/UbTKjKtVvUHtJL8Emmc/vnuCsuADf4R5EJjlS6uHjLr/
20m
pexip-ms-tenant-domain-verification=ba5e6ec4-776f-49cc-b6fe-8a11e1e5128d
20m
pexip-portal-domain-verification=ba5e6ec4-776f-49cc-b6fe-8a11e1e5128d
20m
TXT
—
00D24000000jMym=1TBJv000000062D
20m
TXT
—
ShdMCDo2dIXrp31AT7HrMwp9LdlLHm5hgDW9SsGbsG6Th9o/4sNO4liyPiH5hfwgYa+yhi7sHYm+dd7BJatrFg==
20m
vsb.cz. 1200 IN TXT "atlassian-domain-verification=PVJmH5mprRkDMCb9DCk/UbTKjKtVvUHtJL8Emmc/vnuCsuADf4R5EJjlS6uHjLr/" vsb.cz. 1200 IN TXT "pexip-ms-tenant-domain-verification=ba5e6ec4-776f-49cc-b6fe-8a11e1e5128d" vsb.cz. 1200 IN TXT "pexip-portal-domain-verification=ba5e6ec4-776f-49cc-b6fe-8a11e1e5128d" vsb.cz. 1200 IN TXT "00D24000000jMym=1TBJv000000062D" vsb.cz. 1200 IN TXT "ShdMCDo2dIXrp31AT7HrMwp9LdlLHm5hgDW9SsGbsG6Th9o/4sNO4liyPiH5hfwgYa+yhi7sHYm+dd7BJatrFg=="