I have customers getting dynamic IP rejections from multiple places. Our IP does not change and is not dynamic. We host over 150 virtual mail servers on this one IP. It appears to be a new test or rejection I am not seen. I'm having difficulty reaching anyone on the other sides to find out what exactly is happening. Has anyone else experienced this issue before? Any recommendations? We're not on any blacklists that I can find. From time to time we have trouble sending to Yahoo. Every month or every other month we have go through the form process to gain access again, but that's become one of the issues I expect to see from Yahoo. This issue is new. Here's an example of the error: Unexpected connection response from server: 421 mails from 68.208.144.9 refused: local dynamic IP address 68.208.144.9
I'm considering this to be a possible DNS issue, but still not sure why. Any help is appreciated. Thanks, Julie Harris
