hi, ive a small office client with 3 win 2008 servers , etc... we use a sonicwall tz2000 to goto internet via dsl with local isp. we use a mail server thus the outbound smtp server must be on our network, in other words we can send using the isp outbound server because we're on their dsl circuit. other than that the sonicwall also connects to my office sonicwall tz200 as vpn for support.
recently the dsl went down, and our isp sent tech to check dsl modem, line, etc.. and said it was verizon circuit issue, then we had to wait on verizon to come, and then for them to do the work at their c.o.? either way we were down for almost 3 days.
we need another solution as an option if this happens again. the sonicwall and the servers are failrly new so im interested in options for when the dsl line goes down, we really need our mail to come in/out moreso than surfing the net....
i understand the tz200 has some form of failover options, but i think its a hardware failover in case the sonicwall fails.
im not 'against' changing our popboxes from the dsl isp to a generic online mail service thus we dont need to be on their circuit to send outbound mail from our server [our server connects to the popboxes and pulls the mail down to its mailboxes accordingly, and uses the smtp server of the dsl isp to send all server outbound mail.]
i did a little research here on ee, and saw some options however these were a few years old, and i assume there newer options available these days.