we changed ISP and IP addres
Our Exchange email sever get bounce backs form some of our clients. I already updated my A-records and firewall. My new ISP support tells me I need a SPF record. I'm not familar with SPF. I tried spfwizartd.net and added txt spf record to networksolution.com account.
I'm not sure if I did it correctly
here is what I used: v=spf1 mx a ptr ipxxx.xxx.xxx.xxx ?all
xxx.xxx.xxx.xxx is our eail public IP