troubleshooting Question

Why would resubnetting a network cause problems sending mail

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leont asked on
RoutersNetworkingDHCP
5 Comments1 Solution468 ViewsLast Modified:
Hi Everyone, I chose to resubnet a network from 255.255.255.0 to 255.255.252.0 (have been using 192.168.0.1 - 192.168.0.254 as previous range, with internet router on 192.16.1.1 with a proxy in between) to increase the available IP's as we were running out..  I changed the static IP'd devices subnet to meet the new subnet and deleted the DHCP scope and created a new one to include the new subnet.  Everything seemed to be working fine however one thing i found was not running after the changeover.  No one is able to send e-mail (via pop3/smtp accounts, no exchange server) but we are able to receive mail??  Have i missed something obvious?   could this be a result of the resubnet??

thanks in advance and as usual any help would be greatly appreciated.
Leon
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