[Email Deliverability Help] Gmail Postmaster: Delivery Errors


Active Member
Hello guys, hope you're all doing well.

I started warming one IP address. the IP is configured properly (DKIM, DomainKey, SPF, Sender-ID, DMARC. MX.) Sending through TLS encryption connection.
from the backend Im using pmta to send 2 simulate connections 5 messages per connection at 70 email per hour. Sending about 2000 email per day.

I got 0.0% spam rate. 0.0% spam feedback rate. on my list it has 0 hard bounces.

Gmail Postmaster takes time to update the report, Today Aug, 25th. send few message but there were no errors on pmta.

I was just wondering what would cause this TempFail, with the reason: Suspected Spam.
would it be the message contents, From Name/Email, or the speed. or many simulate connection ?

Thank you very much