---
title: "Viewing Communication History & Email Diagnostics"
description: "VendorHearth Pro includes communication history and diagnostic tools to help organizers review vendor messages and investigate email problems. These tools are especially useful when a vendor says they did not receive an expected email. ## Communication History VendorHearth maintains information…"
url: "https://vendorhearth.com/docs/viewing-communication-history-email-diagnostics/"
updated: "2026-09-23"
category: Communications — email templates, reminders, automation, communication history
---

# Viewing Communication History & Email Diagnostics

VendorHearth Pro includes communication history and diagnostic tools to help organizers review vendor messages and investigate email problems.

These tools are especially useful when a vendor says they did not receive an expected email.

## Communication History

VendorHearth maintains information about communications generated through supported VendorHearth workflows.

Communication history can help organizers determine whether a message has already been sent before sending another one.

This is useful when several staff members are working with the same vendors.

## Why Review Communication History?

Before sending another message, communication history can help answer questions such as:

- Was an email already generated?
- What type of message was sent?
- Was the vendor previously contacted?
- Has another staff member already followed up?
- Was a reminder already sent?

Reviewing the history can prevent unnecessary duplicate messages.

## Communication History Is Not Proof of Delivery

A message appearing in VendorHearth's communication history does not necessarily prove that it reached the vendor's inbox.

VendorHearth may successfully pass an email to WordPress while another part of the email-delivery process prevents it from reaching the recipient.

Delivery can also be affected by:

- Web hosting
- WordPress email configuration
- SMTP configuration
- Spam filtering
- Recipient email providers
- Incorrect email addresses

## Email Diagnostics

VendorHearth includes email diagnostic tools to help investigate communication problems.

Use diagnostics when emails appear to be failing or when several vendors report that expected messages are not arriving.

## Start With the Email Address

Before investigating the entire website, verify the vendor's email address.

Check for:

- Misspellings
- Missing characters
- Incorrect domains
- An outdated address

A correctly functioning email system cannot deliver a message to an incorrect address.

## Send a Test Email

VendorHearth's email configuration includes the ability to send a test email.

Use a test email when verifying that the website can generate and send mail.

If the test email fails, the issue may involve the website's email configuration rather than a specific vendor or automated workflow.

## Check WordPress Email Delivery

VendorHearth relies on WordPress to send email.

If messages are being generated but are not arriving, your website may need a more reliable email-delivery configuration.

Many WordPress sites use an SMTP or transactional email service to improve delivery reliability.

The specific email service you choose is separate from VendorHearth.

## Check Automated Processes

If manually triggered messages work but automated reminders do not, review your site's scheduled tasks.

VendorHearth uses WordPress cron for supported automated processes.

Check **VendorHearth → System Readiness** for relevant warnings.

## Check Spam and Junk Folders

If VendorHearth appears to be sending normally but one vendor cannot find the message, ask them to check:

- Spam
- Junk
- Promotions
- Other filtered folders

They may also need to allow messages from your organization's sending address.

## Look for a Pattern

When troubleshooting email, determine whether the problem affects:

**One vendor**
The issue may involve the vendor's address or email provider.

**One type of message**
The issue may involve a particular template or workflow.

**Automated messages only**
The issue may involve scheduled tasks.

**All VendorHearth emails**
The issue may involve WordPress or server email configuration.

Identifying the pattern can significantly narrow down the cause.

## Do Not Repeatedly Send the Same Message

If a vendor reports a missing email, avoid repeatedly clicking send while troubleshooting.

First determine whether VendorHearth generated the message and whether the site's email system is functioning.

Repeated attempts can result in the vendor suddenly receiving multiple copies if the underlying delivery issue resolves.

## Use History and Diagnostics Together

Communication history tells you what VendorHearth has attempted to send.

Diagnostics help you investigate whether the website's communication system is operating correctly.

Using both provides a better troubleshooting picture than relying on either one alone.

## Next Step

Continue to **Troubleshooting Email Delivery** for a step-by-step process for diagnosing emails that are not reaching vendors.