Lots of carriers block port 25 from dynamic addresses with whitelists to allow
servers they know about through
Maybe depends on where you are connecting from
Can you telnet to other MX servers okay? That would give you an idea of whether
its a carrier issue (although the McAfee and perhaps
There is a different cost model here, and some limitations but various upsides
One big issue I see is if you have lots of shared mailboxes e.g. for client
projects or other reasons then you have to pay for all of those as a license,
as always it will be horses for courses
What about Microsoft
One issue I had with installing a wild card certificate was in iiis
expecting a client certificate for the rpc directory
Somehow that changed during the certificate installation, I took this
requirement off the rpc dir in iis and things came back to life. I
found it using the rpc tools for
Usually you have to have that cert installed in the Trusted Root Authorities,
if his profile or machine changed or the cert changes you can get problems like
this
I tend to get people to check they can access webmail with no certificate
errors in IE to verify the cert is okay
Cheers Duncan
