We just upgraded from on VPN (juniper netscreen box) to another VPN (Cisco Pix 501 box). Everything is working fine except emailing from our site to our parent site. We are on two different domains. they are using Exchange and we are using Postoffice. We can email out to the outside world but not to our parent company. We have checked the DNS settings on my mail server and everything look good. We are using Wingate for internet access, and Mail Marshal, which we have checked the configurations on both of them and they seem to be fine. Does anyone have any ideas as to what else could be wrong.
Again, we can send and receive email to/from the outside world, however we can receive email from our parent company, however when we send emails (reply or new emails) they do not get to our parent company.
Thanks so much!!!
