Start Here: Find the Right Sendblue Guide

Last Updated: April 12, 2026

Customer-Facing Guide

Welcome

If you are not sure which Sendblue help article to read first, start here. This page routes you to the most useful guides based on what you are trying to solve.

1) Messages are failing or not delivering

• Message Delivery Triage in Sendblue

• Why Messages Fail When the Wrong From Number Is Used

• How to Check Phone Line Health

• Why did my Sendblue line get blocked?

• Read Receipts in Sendblue: iMessage vs SMS

2) You hit limits, pacing issues, or usage questions

• Daily Limits, Rate Limits, and Capacity in Sendblue

• How Usage Works in Sendblue

• What Happens to New Leads After I Hit My Daily Usage Limit?

3) You are configuring calling, forwarding, or Power Dialer

• Calling Setup: Power Dialer, Forwarding, and Voicemail Basics

• How to Use the Sendblue Power Dialer

• Forwarding Numbers

• Call Forwarding with Sendblue

4) You need opt-out, compliance, or messaging-policy guidance

• Opt-Outs and Suppression in Sendblue

• How the Opt-Out Feature Works in Sendblue

• Best Practices for Links, Media, and First Outreach

• HIPAA, BAA, SOC 2, and Security Requests

• A2P vs TCPA

• New Texas SB 140 Regulations

5) You are troubleshooting workflows, missing sends, or dashboard visibility

• Workflow Troubleshooting: Message Never Sent vs Message Never Reached Sendblue

• Why a Workflow Can Create a Message Without Sending It

• Why a Message Can Be Sent Even If It Looks Missing in the Dashboard

• Duplicate Messages in Sendblue: Workflow Fired More Than Once or Same Contact Re-Enrolled?

Still not sure?

If none of these fit cleanly, start with Message Delivery Triage in Sendblue or contact support with the exact symptom, the affected line or account, and a few concrete examples.