This week on the podcast, Dan talks about how his formative years in computing still affect him, Kyle shares some follow-up on deploying the latest PIs, and then Dan talks about using Postfix as an SMTP relay to improve email delivery in PeopleSoft.
This week on the podcast, we discuss some feedback on using Shared Cache, options for non-production SMTP servers, and a chicken and egg problem with the Elasticsearch DPK silent install.
We are standing up a new data center and users received SMTP errors while testing. We were able to ping the server so DNS lookup and network traffic was working. But we only had a generic SMTP error message. So, I fired up telnet and tested our SMTP connection using these commands:
telnet o smtp.psadmin.io ehlo mail from:email@example.com rcpt to:firstname.lastname@example.org data Test Email .
When we first tested send emails through the SMTP server, we received an “Unable to relay for email@example.com” error. That’s much more descriptive and a useful message to send to the Exchange administrators.