Do you have a firewall that limits incoming port 25 and outgoing port 25? If so, then checking the box is just fine.
If not, you need to do as Chuck suggests. From: Mayo, Bill [mailto:bill.m...@pittcountync.gov] Sent: Wednesday, January 30, 2013 9:04 AM To: MS-Exchange Admin Issues Subject: Allow anonymous on default Receive Connector? Moving from Exchange 2003 to 2010. We have an email appliance on the perimeter. I am at the stage where I need to change the mail flow to bypass the 2003 server(s). I have found several migration guides that indicate to simply check the box to allow Anonymous access on the default receive connector on the HT box(es). IIRC, the Exchange training I took had you create a separate receive connector for anonymous access, which would require a separate IP (unless I misunderstand something). The logic I see there would be that I could limit that connector to only accept traffic from desired IP's (e.g. the email appliance and designated internal devices). However, we are using NLB on these servers for CAS functions and it would make life interesting trying to maintain high availability for both. So, the question is, do most folks simply allow Anonymous on the default receive connector, or use a different connector? Bill Mayo --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist
