Postfix SPF DNS problem

[jakethecake]

Hi I have a Postfix mail server in a Debian Linux network and used to be able to connect to it on port 25 via telnet. I also have working DNS on the server.

I added this MX record to the DNS zone file:

@  IN  MX  10  server.c4.sysinst.ida.liu.se.

It worked fine after that also but then I added this SPF record, the goal is that only the server is supposed to be able to send mail from the nework:

@    IN     TXT     "v=spf1 mx ip4:130.236.189.218 mx:server.c4.sysinst.ida.liu.se ~all"

But after I added that I'm not able to connect using telnet localhost 25 on the server. Help would be appreciated.

 

[donb01]

Mine looks like this:

within the 'mydomain.org' zone file (Bind 9). My DNS server is the same box as the mail server so you may need to edit slightly.


@ IN MX 10 mail

;
mydomain.org. IN TXT "v=spf1 a mx ~all"
mail.mydomain.org. IN TXT "v=spf1 a -all"


Don't know if it is right, but it works, and sending to GMail and looking at the headers confirms it's accepted.