Domainchecker
MX
no MX record
MX
No MX record found!
SPF
v=spf1 include:_spf.inboxsys.net include:ip4.inboxsys.net include:ip6.inboxsys.net -all
SPF
v=spf1 include:_spf.inboxsys.net include:ip4.inboxsys.net include:ip6.inboxsys.net -all
No default is set
DNS lookups:
1: include:_spf.inboxsys.net
2: include:ip4.inboxsys.net
3: include:ip6.inboxsys.net
4: include:_ip6_1.inboxsys.net
5: include:_ip6_2.inboxsys.net
No default is set
DNS lookups:
1: include:_spf.inboxsys.net
2: include:ip4.inboxsys.net
3: include:ip6.inboxsys.net
4: include:_ip6_1.inboxsys.net
5: include:_ip6_2.inboxsys.net
DKIM selector
v=DKIM1; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3wj57xaux1nPskYWom+jgSX5k78Ah3Rpcy2setDonIQeuDuQKq+dR55aszVJ1Y5jjFfV/maw0ik3qiCN1x7Ddjs3sMYRbV+e86hiTwHtZL0jBzLQfYbzAiK0LsogwFBIA1MnXiB3tl8EPJNEGdQqPnccR+Hoeele1J7sO1IcAZ4P2uB8aKfw0OWwj7YxXl2+pfv
w2RPNJaEUf3PGiPFCvzGrF8wAxc+lEkX3Z3WIo73RqzoZ8DU4E9nds32D7qlhlKxAYUihybMiUlE0yobLCrcUFMgepRH6XChWIyS7Fn4qRytqXwquucrzfvURBtdjclqq8H7eRhxWFXJiqC4qYQIDAQAB
DKIM
ERROR: Please set "t=" to "n"
ERROR: Please set "p=" to "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDE9CGsA+KlcZhpt22zoE2oDMZQzYCbqfph9tfeaCjZG1y2qUQ+IfJIqncxSeQ30Q9B+Stlmy/oWq8V6E+PMsdC1BnCNXWwVYeTUUAUjOSH1REk0XE2g15RaXHOQzK9BNanfnGjhXRi9gpTIx4efOXdfLVOzE/UhwJPP3QKXJ0ypQIDAQAB"
CHANGE: "k=rsa;" is missing.
ERROR: Please set "p=" to "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDE9CGsA+KlcZhpt22zoE2oDMZQzYCbqfph9tfeaCjZG1y2qUQ+IfJIqncxSeQ30Q9B+Stlmy/oWq8V6E+PMsdC1BnCNXWwVYeTUUAUjOSH1REk0XE2g15RaXHOQzK9BNanfnGjhXRi9gpTIx4efOXdfLVOzE/UhwJPP3QKXJ0ypQIDAQAB"
CHANGE: "k=rsa;" is missing.
DMARC
v=DMARC1; p=reject; aspf=s; rua=mailto:dmarc@dmarc.mailmike.net; rf=afrf; pct=100;
DMARC
DMARC matches your settings
Domainchecker copy / paste
date: 18.01.2026 - [direct link] - Senderdomain: mta2.inboxsys.net
host -t mx mta2.inboxsys.net.
domain mta2.inboxsys.net not found
host -t txt mta2.inboxsys.net.
mta2.inboxsys.net descriptive text v=spf1 include:_spf.inboxsys.net include:ip4.inboxsys.net include:ip6.inboxsys.net -all. [warn]
host -t txt deliv202301._domainkey.mta2.inboxsys.net.
deliv202301._domainkey.mta2.inboxsys.net descriptive text v=DKIM1; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3wj57xaux1nPskYWom+jgSX5k78Ah3Rpcy2setDonIQeuDuQKq+dR55aszVJ1Y5jjFfV/maw0ik3qiCN1x7Ddjs3sMYRbV+e86hiTwHtZL0jBzLQfYbzAiK0LsogwFBIA1MnXiB3tl8EPJNEGdQqPnccR+Hoeele1J7sO1IcAZ4P2uB8aKfw0OWwj7YxXl2+pfv
w2RPNJaEUf3PGiPFCvzGrF8wAxc+lEkX3Z3WIo73RqzoZ8DU4E9nds32D7qlhlKxAYUihybMiUlE0yobLCrcUFMgepRH6XChWIyS7Fn4qRytqXwquucrzfvURBtdjclqq8H7eRhxWFXJiqC4qYQIDAQAB. [fail]
host -t txt _dmarc.inboxsys.net.
_dmarc.inboxsys.net descriptive text v=DMARC1; p=reject; aspf=s; rua=mailto:dmarc@dmarc.mailmike.net; rf=afrf; pct=100;. [ok]
host -t mx mta2.inboxsys.net.
domain mta2.inboxsys.net not found
host -t txt mta2.inboxsys.net.
mta2.inboxsys.net descriptive text v=spf1 include:_spf.inboxsys.net include:ip4.inboxsys.net include:ip6.inboxsys.net -all. [warn]
host -t txt deliv202301._domainkey.mta2.inboxsys.net.
deliv202301._domainkey.mta2.inboxsys.net descriptive text v=DKIM1; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3wj57xaux1nPskYWom+jgSX5k78Ah3Rpcy2setDonIQeuDuQKq+dR55aszVJ1Y5jjFfV/maw0ik3qiCN1x7Ddjs3sMYRbV+e86hiTwHtZL0jBzLQfYbzAiK0LsogwFBIA1MnXiB3tl8EPJNEGdQqPnccR+Hoeele1J7sO1IcAZ4P2uB8aKfw0OWwj7YxXl2+pfv
w2RPNJaEUf3PGiPFCvzGrF8wAxc+lEkX3Z3WIo73RqzoZ8DU4E9nds32D7qlhlKxAYUihybMiUlE0yobLCrcUFMgepRH6XChWIyS7Fn4qRytqXwquucrzfvURBtdjclqq8H7eRhxWFXJiqC4qYQIDAQAB. [fail]
host -t txt _dmarc.inboxsys.net.
_dmarc.inboxsys.net descriptive text v=DMARC1; p=reject; aspf=s; rua=mailto:dmarc@dmarc.mailmike.net; rf=afrf; pct=100;. [ok]