Blacklisted issue

I'm not sure what you're looking for or what you're trying to accomplish

the IP "74.208.4.197" is part of a block owned by 1&1, and is assigned to "mout.perfora.net"

Thanks a lot!!!

I am trying to see if 98.137.69.204 is being blacklisted but I am still not sure after checking mxtoolbox.  

Would you advise again?

Kenfcamp, would you advise the site you use to identify 74.208.4.197 is assigned to mout.perfora.net?  

Many thanks.

If you check that IP https://whatismyipaddress.com/blacklist-check you can see it appears in good order with the exception of spam.dnsbl.sorbs.net (which is the same result as https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a98.137.69.204&run=toolpage).  You can learn more at http://www.sorbs.net/delisting/overview.shtml

advise the site you use to identify 74.208.4.197 is assigned to mout.perfora.net

Host command under Linux

host 74.208.4.197
197.4.208.74.in-addr.arpa domain name pointer mout.perfora.net

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If I want to contact mout.perfora.net's administrator to look into this, which site I can go to get more information of the administrator?

I am trying to see if 98.137.69.204 is being blacklisted but I am still not sure after checking mxtoolbox

According to the information from Mxtoolbox (from the link provided by Daniel Pineault) the IP looks clean except for 1 SORBS hit

Daniel Pineault provided a link that will assist you in getting removed

If I want to contact mout.perfora.net's administrator to look into this

I doubt that will get you anywhere

Look into what?
What exactly is the problem you are trying to resolve

Dns lookups can be done with f.e.:

dig -x ip.add.re.ss

or host
or getent host
etc.etc.

1) https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a74.208.4.197&run=toolpage provides clear detail this IP is blacklisted by several RBLs, with SORBS being the worst.

2) IP owner...

lxd: net16-dmarc-work # hostip 74.208.4.197
mout.perfora.net

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3) The real question is why do you care. Mentioning why you care or what you hope to accomplish by determining if the IP is blacklisted will help.

For example, this looks like some bogus site which may be a Spam email service.

So unsure what you hope to accomplish by trying to contact them, as if this is true it's likely any outside request from anyone will be ignored.

Start with what you're trying to accomplish, for comments about if this is possible + how you might proceed.

Removal from a blacklist  involves the following:
1) identify to the blacklist that you OWN the address and are responsible for it  (it will cause the same treatment for all addresses that you have already with them to get the same treatment)
2) you receive a list of problems that need to be solved.. like stop sending spam or spam lookalike material or what ever went wrong from that
3) if you fixed all problems you can indicate to them that you have solved them... then you get a provisional "release"  upon the FIRST trespass this will be revoked and you can not repair until one week (or even longer) later. next time it fails to behave the period increases etc.

If you obtained an address from an ISP which has been previously used by a spammer then good luck..., better ask you ISP for another unencumbred address.
If the ISP cannot provide, ask yourself if you want to stay with that ISP....

you can only control what you own. You cannot have any effect on something owned by a 3rd party.  If you are the owner of the ip address or the ip address is being used by something you own then you can do something. Your question leads me to believe that it is a 3rd party and not something you own or have control over. This leads me to the question as to why you are concerned about a 3rd party being blacklisted? If they are trying to contact you then you would already know the email address and owner of the site that is trying to contact you.  

You have not answered the question of what is the problem you are trying to solve. Since it is a 3rd party you can't solve it.

Thanks, everyone.