Hello, normally this error would be straight forward but I'm getting confused by the ending on the error. When my client attempts to email a specific domain, they get the following bounceback:
"SMTP: 554 refused mailfrom because of SPF policy - on relay of: MAIL
Ordinarily I would assume that our clients email is being rejected because of a misconfigured SPF record. However, first off I looked at their SPF and it looks correct.
+ ipp4 <ip address1> Pass
- all <blank> fail
+ v=spf1 <blank> Pass
+ ip4 <ip address2> Pass
- all <blank> Fail
record: v=spf1 ip4:<ip address1> -all v=spf1 ip4: <ip address2> -all
What throws me is the end of this error which says "on relay of MAIL". Wouldn't this indicate that there is a problem on the recipients end? The client is using an exchange 2003 box.