How To Change The Outgoing Email Domain In MacOS

Author: erics, March 17th, 2022

When I sent email from my desktop Mac cron jobs, it went out with the full hostname as the domain, i.e.: root@demo.wyzaerd.com, when all I wanted was a simple root@wyzaerd.com for ease of deliverability and domain maint. Edit the mail configuration file main.cf:

Add/edit the myorigin value of $mydomain:

Categories: How-To's, Technology Tags: Change, Domain, Email, Hostname, MacOS, mail, main.cf, Masquerade, mydomain, myorigin, PostFix | No comments

How To Enable DNS Hostnames for AWS VPC

Author: erics, August 8th, 2016

When you launch an instance into a VPC, AWS provides the instance with a public DNS hostname only if DNS hostnames are enabled for the VPC. By default, DNS hostnames are enabled only for default VPCs and VPCs that you create using the VPC wizard in the VPC console. If you enable DNS hostnames and […]

Categories: How-To's, Technology Tags: AWS, DNS, DNS hostname, Hostname, howto, tips, VPC | No comments