On 3/22/24 14:58, Michael Peddemors via mailop wrote:
If they are 'dedicated', doesn't matter if they are coming from
SendGrid, the PTR should reflect your clients domain.
host 149.72.234.90
90.234.72.149.in-addr.arpa domain name pointer
wrqvzxrx.outbound-mail.sendgrid.net.
If Sendgrid claimed that these IPs are dedicated to you, their PTR says
otherwise. It should reflect your sending domain. Note that Sendgrid has
a rather poor reputation when it comes to spam exiting their network.
And given the amount of abuse of SendGrid servers, anything you can do
to differentiate from their generic naming conventions will help you.
Or avoid Sendgrid entirely.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
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