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Can ping but can't telnet across tunnel

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  • Can ping but can't telnet across tunnel

    have 2 sites connected via vpn, all part of same AD forest, having issue with mail flow between exchange servers, so i try to telnet from each exchange server to the other on port 25 and it doesn't work, but they each can ping, so i try from the routers which are both cisco 2821, same thing can't telnet from the opposite router across tunnel on 25, but each router can telnet on 25 to its own site exchange server. i can't see anything that would be preventing, hoping maybe you guys notice something, attached are the configs
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