Reason 550-callback setup failed while verifying

For faster and more reliable delivery, add noreply smartertools. Forever day s week s month s. Back to Community Threads. Select a category for your thread.

Dear Sirs. Remote Server returned : Callback setup failed while verifying result of an earlier callout reused. This host does not accept mail from domains whose servers refuse bounces. Sender verify failed. Offensive Content. Wrong Category. All rights reserved. Covered by US Patent. Come for the solution, stay for everything else.

Welcome to our community! Since this last week I have been noticing that several external mail-accounts three in total are reporting the following error as inclosed below when you try to send them a message : Reporting-MTA: dns; mail. This host does not accept mail from domains whose servers refuse bounces.

Besides the three external accounts that actually log this specific error all other external accounts are functioning just fine. Expert of the Year The Expert of the Year award recognizes an expert who helped improve Experts Exchange in the past year through high levels of contributions and participation on site.

Join our community to see this answer! Unlock 1 Answer and 2 Comments. Error reports began to come more recently like: 5. Labels: Labels: Email Security. Tags: bounce. All forum topics Previous Topic Next Topic. Accepted Solutions. In response to martin. Post Reply. Latest Contents. Created by Mitesh Manwatkar on AM. Created by Anupam Pavithran on AM.

Introduction This article describes the set of logs that can be verified related to SI feeds, starting from configuring to periodic updates. Created by dhr. What is pxGrid? Cisco pxGrid provides a unified framework that enabl Created by meddane on AM. Haga Una Pregunta. Blogs Security Blogs Security News. Related support document topics.