I’m not seeing anything incoming in the SMTP logs at all. I see our outgoing just fine.
From: [email protected] [mailto:[email protected]] On Behalf Of Richard Stovall Sent: Wednesday, February 11, 2015 9:31 AM To: [email protected] Subject: Re: [Exchange] Incoming email from single company being rejected with 4.4.7 Do you show any corresponding SMTP connections at all on your edge equipment, or is it a pure timeout on their side? On Wed, Feb 11, 2015 at 10:18 AM, Maglinger, Paul <[email protected]<mailto:[email protected]>> wrote: We're having an issue with one company trying to send us emails. They get a 4.4.7 whether replying to or sending a new email. They can receive emails from us just fine. They apparently aren't having a problem with any other company. Things I've found keep saying that the problem is on the recipient (our) server, but we're getting email from everyone else just fine. I've run a DNS report for both domains and it looks okay. As they are the only one we're having a problem with - I'm pointing the finger at the DNS on their end but willing to consider something on mine. I'm trying to help them out, but there's only so much I can do from my side. Any thoughts on this to build a case either way? -Paul
