is_blocked.For assistance forward this error to firstname.lastname@example.org
Our company runs a healthcare patient portal for billpay, with numerous clients in the SE. We are paid to delivery online statements to patients by healthcare facilities. Unfortunately we have a large population of Bellsouth users. We are currently running a 30% failure rate on Bellsouth emails getting delivered.
We are using Sendgrid and their is no logic to why our emails are getting blocked as one email with the same exact template subject DNS/ IPS is successful and the next on is blocked.
This causing considerable damage to our business and reputation. All emails to abuse-att.net are ignored.
Has anyone ever gotten this solved?