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Anyone here using Exchange behind Uverse service?
Posted on 4/29/15 at 2:58 pm
Posted on 4/29/15 at 2:58 pm
A customer of mine upgraded from DSL to Uverse and has an on premises Exchange.
They use MX logic for inbound filtering, so I just configured the static on their router behind the Uverse modem, pointed MX logic at the new IP, and updated their SPF record.
They started getting bounces from several recipients' servers with the following error:
#501 5.7.1 ... Sender IP must resolve ##
Googling that error, I find people talking about PTR or reverse DNS records that resolve the IP to their hostname. As this would almost certainly involve AT&T support, which I did not want to get involved with, I just setup Exchange with a smart host to MX Logic and started using MX Logic for outbound (already included in subscription).
But certainly there must be people using Exchange behind Uverse without a smart host. Has anyone run into this? I'm just curious what other solutions are.
They use MX logic for inbound filtering, so I just configured the static on their router behind the Uverse modem, pointed MX logic at the new IP, and updated their SPF record.
They started getting bounces from several recipients' servers with the following error:
#501 5.7.1 ... Sender IP must resolve ##
Googling that error, I find people talking about PTR or reverse DNS records that resolve the IP to their hostname. As this would almost certainly involve AT&T support, which I did not want to get involved with, I just setup Exchange with a smart host to MX Logic and started using MX Logic for outbound (already included in subscription).
But certainly there must be people using Exchange behind Uverse without a smart host. Has anyone run into this? I'm just curious what other solutions are.
6
Posted on 4/29/15 at 3:00 pm to Casty McBoozer
Wrong board...Try the Tech Board.
Posted on 4/29/15 at 3:02 pm to Casty McBoozer
I also have Uverse...that's about all that I can add to this conversation. No idea what else is going on in here.
Prayers sent.
Prayers sent.
Posted on 4/29/15 at 3:11 pm to Casty McBoozer
Posted on 4/29/15 at 3:13 pm to Casty McBoozer
quote:
involve AT&T support,
Posted on 4/30/15 at 8:06 am to Casty McBoozer
I have five clients with the same setup. Uverse blows...you can not send outbound email directly because of the sender spam checks. You have to smart host. ATT will NOT give you a reverse ptr record since Uverse blows. ATT will not give you a smarthost to use because Uverse blows. So you need to setup a third party smarthost to route all outbound email.
Reply if you need more help.
Reply if you need more help.
Posted on 5/2/15 at 6:18 pm to Casty McBoozer
This is what happens when you use resedential internet for a business.
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