Use real server address instead of 127.0.0.1 in your account.' Generating server: Server returned '550 No SMTP server defined. Use real server address instead of 127.0.0.1 in your account.ĭiagnostic information for administrators: If the problem continues, please contact your email admin. Subject: Undeliverable: RE: Payment Needed - VMC Design OrderĮXCHANGE2016 rejected your message to the following email addresses:įRecp LRecp problem occurred while delivering your message to this email address. Here is the actual (revised) email the user gets: From: Microsoft Outlook I'd like know where to find where the SMTP server is defined as 127.0.0.1. I've noticed this happens mostly with gmail and comcast, but a few come from other domains. There have been no changes in the system for sometime so it is very interesting this error pops up like some sort of configuration error.
A user gets a kickback stating the email was undeliverable. It has been running well for a few years now.
We have an in house MS Exchange 2016 server.
