To set up support for Sender Policy Framework on your server: 1. Click the Server shortcut in the navigation pane. 2. Click the Mail icon in the Services group. The server-wide mail preferences screen will open on the Preferences tab. 3. Select the Switch on SPF spam protection check box and specify how to deal [...]
Domain has demonstrably > bogus MX check your mx record and ensure they are actual mail servers.
error: 553 sorry, that domain isn’t in my list of allowed rcpthosts solution: edit the /var/qmail/control/rcpthosts add the domain to the list of domains .
make sure the network service has permissions to the MailProcessing directory under C:\Program Files\SmarterTools\SmarterMail\MRS
Telnet server 25 helo or ehelo yourdomain.com auth login 334 – username using base64 encryption 334- password using base64 encryption mail from: hi@yourdomain.com rcpt to: where@somewhere.com data From: from@yourdomain.com to: where@somewhere.com subject: test body enter, then enter ending with a . ================= non auth , skip the auth login command to encryt use the tool [...]