Issues after moving our mail server

[scottew]

Our office moved to a new facility and I am having some issues send email to certain domains.

I had our ISP who host our public DNS set up a RDNS entry for our new IP address. When I look it up on dnsstuff.com, it says it passed and shows the following:

2.178.184.66.in-addr.arpa factorhealth.com. [TTL=85713]

Does that entry look correct? I thought it should have "mail.factorhealth.com".

I also have an account on mxtoolbox.com but it says that the Reverse DNS failed.

The other thing I noticed is that now when I look up our domain, it fails on the Acceptance of Postmaster Address.

Any ideas what may have caused this to fail after a move?

Thank you in advance.
Scott

 

[reynolwi]

Sounds like your ISP didnt change something right if the reverse dns isnt passing.

Wm. Reynolds
Premise Communications
Texas Public Safety Solutions

http://www.rrwds.com

http://www.txpubsafety.com

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Network Error:
Hit any user to continue

 

[markdmac]

IPTOOLS reports RDNS: 66.184.178.2 is factorhealth.com.
MX Lookup shows mail.factorhealth.com
SPF lookup shows you are lacking an SPF record.

I think you are OK with the RDNS entry since it does point to your domain, however you should have an SPF record.

I hope you find this post helpful.

Regards,

Mark

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[scottew]

Thank you both for your responses. When we first moved to our new facility, I had not yet had our ISP set up the RDNS record. Therefore, a couple of companies (AT&T - Comcast) had blocked our IP address. I have since had them remove it and things are working fine now.

Next step is to have the SPF recordd set up.

Thanks again,
Scott