Tonight when I was running through some of the files on my server I looked in realyhosts and saw all of the following IPs listed. I do not recall specifically adding any IPs to the file. I am not sure if WHM/cPanel alters the content of this file or not but none of the IPs look familiar. Is there any legit reason they should listed in relay hosts?

216.9.248.178
66.35.228.197
67.62.72.98
69.243.214.161
75.150.51.29
76.120.200.238


Thanks
DB

216.9.248.178 PTR record: bda258.bis.na.blackberry.com. [TTL 600s] [A=216.9.248.178]

No PTR records exist for 66.35.228.197. [Neg TTL=600 seconds]

67.62.72.98 PTR record: static-67-62-72-98.t1.cavtel.net. [TTL 86400s] [A=67.62.72.98]

69.243.214.161 PTR record: c-69-243-214-161.hsd1.va.comcast.net. [TTL 86400s] [A=69.243.214.161]

75.150.51.29 PTR record: 75-150-51-29-Richmond.hfc.comcastbusiness.net. [TTL 3600s] [A=None] *ERROR* There is no A record for 75-150-51-29-Richmond.hfc.comcastbusiness.net. (may be negatively cached).

76.120.200.238 PTR record: c-76-120-200-238.hsd1.va.comcast.net. [TTL 86400s] [A=76.120.200.238]

Thank you but that isn't what I asked. I looked up all the IPs in ARIN and other places. I did not ask what the IPs pointd to. I asked if there was any legit reason they should be listed in relayhosts.

Thanks again for the prior response. I was a tad confused (must be the pain meds from recent double total knee replacement) as to the use of relayhosts.

To answer your direct question, I don't know but I just wanted to provide some details.

I read it as if you were wondering why those IP's were listed there so I thought I would just post that information.
At first, I thought it would be the IP's required by TP's monitoring servers but that wasn't the case.
Sorry. I figured if you didn't put them there and don't know why those IP's resolve to the places they do, then the solution would be to remove them.

I am probably just as confused causing you confusion...