Hi. today we started having problems emailing from our office. We all use pop email. We were getting an error message in outlook saying it could not connect to the incoming mail server. I contacted our mail host who said it was an issue with our isp who did not have an rdns entry for our ip address. I contacted our isp who said they do not setup rdns on dynamic addresses. So I am confused. For a test I attempted to telnet to our mail host and could not at the office but could at home (different isp). I can also telnet on port 110 to several other mail server without a problem from the office. Can anyone shed some light on this for me? Or perhaps give me an idea what other tests I can do to try and confirm where the problem really lies?