On Thu, Nov 6, 2025 at 11:13 AM Rich Shepard <[email protected]> wrote:
> A few days ago I tried sending a message to someone at kpijci.com. I was > just notified that try as it might, my MTA (postfix) could not connect with > their MTA. But, I can ping that domain: > ping kpijci.com > PING kpijci.com (208.109.235.102) 56(84) bytes of data. > 64 bytes from 102.235.109.208.host.secureserver.net (208.109.235.102): > icmp_seq=1 ttl=46 time=65.3 ms > etc. > > web and email services are frequently not hosted on the same server. 11/6/2025 6:02:22 PM - Server at SA2PR16MB4075.namprd16.prod.outlook.com > returned '550 5.4.317 Message expired, cannot connect to remote > server(Failed to connect. Winsock error code: 995, Win32 error code: 995)' > > 11/6/2025 5:52:29 PM - Server at webmail.astecindustries.com > (184.174.187.70) returned '450 4.4.317 Cannot establish session with remote > server [Message=Failed to connect. Winsock error code: 995, Win32 error > code: 995] [LastAttemptedServerName=webmail.astecindustries.com] > > Does this mean what I thing it does? That the company is running Win32 on > it's mail server? WTF? > no. it means that the destination domain, kpijci.com, uses an email protection service provided by microsoft. they may or may not also use microsoft's email hosting service, though in this case that is not suggested by the second error message. that one appears to be from microsoft's server, stating that it cannot reach the destination email server. what has likely happened is that the operators of kpijci.com (who, likely, happen to also own/operate astecindustries.com), use godaddy for web and email hosting, and godaddy has an agreement with microsoft to offer email protection service as an add-on product. godaddy charges the customer, microsoft charges godaddy. godaddy configures the protection service to scan emails, and then pass them along to the domain's actual email host. in this case, webmail.astecindustries.com. that host, similarly, responds to pings but does not accept incoming email connections. so, the problem is likely something going on at godaddy. unfortunately there is not much we can do about it. it is up to godaddy's customer to call them and work this out with tech support. if you have another way to reach this person, great. you can tell them their email is broken. if not... you're out of luck. -wes
