Sendgrid setup for outgrow.co
My name is Alex LIpchanskiy. I am with IDEX IT. I work Daniel Clevenger on the issue we are currently facing.
We are looking to secure our external idexcorp.com email. From our logs, it looks like Dan uses a Sendgrid system for sending emails from @idexcorp.com addresses. I recall some ticket activity regarding us classing these as SPAM for outgrow.co and I assume these are related.
We will need to add some data to our external DNS zone which will enable recipient mail services to see these emails as legitimate and not block them going forward.
There are instructions here, and you should be selecting a ‘Custom DKIM selector’: https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-domain-authentication. Can you please provide us with CNAMEs so we could add them to our external DNS?