0
votes
1answer
53 views

DNS issue mail server

I tried to find an answer to this one around with no luck so far. I am not a sysadmin, but I work with mailings and one of our server presents some issues. I do not have personal access to the server, ...
2
votes
1answer
30 views

PTR Webserver and Appserver

I'm a little confused about the setup of a PTR record for reverse dns lookup. We are hosted at Rackspace and we have a front end webserver and behind that an appserver. Users don't access the ...
0
votes
1answer
71 views

Dns filezone setup with mx and spf

I am trying to create a mail server. I bought the domain mastermails.info on godaddy.com. I am struggling with the setup of DNS. Whenever I change something in the MX record to make my server ...
0
votes
1answer
30 views

Google gmail block for no ptr of 4to6 ip address

When mail server got only ipv4 address and enabled 4to6 interface, gmail server block mail because of no ptr record of 4to6 address. Why...? Isn't 4to6 address not global standard...?
0
votes
1answer
118 views

rDNS setup to prevent emails appearing as spam / phishing messages

We are trying to send email without the email appearing in the spam folder. The emails that we are sending is solicited bulk email. The main problem is that the emails are appearing as phishing ...
0
votes
1answer
450 views

Is it safe to use ptr in SPF?

Suppose you have the domain yourdomain.com, and you have set the following SPF: v=spf1 +ptr:yourdomain.com ~all Now, I have the IP address 1.2.3.4, and I am also the administrator of ...
0
votes
3answers
2k views

Hotmail wants me to modify my SPF record

This is my current SPF record. It works well with gmail and yahoo but hotmail was ignoring. So i used their submit system and now they replied me with the text below. This is my current spf v=spf1 a ...