| Name | TTL | Value |
|---|---|---|
| smtp.ser.proofpoint.com | 60 | 34.225.17.174AWS EC2 (us-east-1) / Amazon.com, Inc. |
| smtp.ser.proofpoint.com | 60 | 52.89.187.57AWS EC2 (us-west-2) / Amazon.com, Inc. |
| smtp.ser.proofpoint.com | 60 | 52.202.205.232AWS EC2 (us-east-1) / Amazon.com, Inc. |
| smtp.ser.proofpoint.com | 60 | 54.68.130.227AWS EC2 (us-west-2) / Amazon.com, Inc. |