Is rolfholub.at Safe for Email?

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domain:         rolfholub.at
registrar:      easyname gmbh ( https://nic.at/registrar/414 )
registrant:     <data not disclosed>
tech-c:         ia11831546-nicat
nserver:        ns1.easyname.eu
nserver:        ns2.easyname.eu
changed:        20180406 11:25:38
source:         at-dom

personname:     hostmaster einsundeins
organization:   1&1 internet ag
street address: brauerstr. 48
postal code:    76135
city:           karlsruhe
country:        germany
phone:          +497219600
fax-no:         +4972191374248
e-mail:         [email protected]
nic-hdl:        ia11831546-nicat
changed:        20180406 11:25:09
source:         at-dom