6 minute read•Last updated: February 13, 2026

Email Delivery Problems

Fixing issues with invoice emails, quote notifications, verification codes, and reminder delivery

What You'll Learn

Troubleshoot missing invoice and quote emails
Fix email verification code delivery issues
Resolve reminder emails not sending
Understand email template issues
Check client email configuration

Issue 1: Client Didn't Receive the Invoice or Quote Email

You sent an invoice or quote, but your client says they never received it.

Solution

Verify the email address — check that the client's email is correct in their client record. A typo in the address means the email goes nowhere.

Check spam/junk folders — WorkCentral emails may be filtered by corporate email systems. Ask your client to check their spam folder.

Resend from the detail page — open the invoice or quote and click "Resend" to generate a fresh email delivery.

Check billing contacts — for invoices, if the client has a separate billing contact configured, the email is sent to both the primary email and the billing contact.

Link Expiration

Quote Links

Signed URLs valid for 30 days from send date

Payment Links

Payment tokens valid for 30 days from creation

Pro Tip

If clients consistently report missing emails, ask them to add your WorkCentral email address to their contacts or safe sender list. This prevents corporate email filters from blocking your invoices and quotes.

Issue 2: Email Verification Code Not Arriving During Signup

You registered a new account but the 6-digit verification code email never showed up.

Solution

Check spam/junk folders — the email comes with the subject "Verify Your Email Address - WorkCentral."

Ensure the email address is correct — verification codes are sent to the email used during registration. Double-check for typos.

Click "Resend Code" for a fresh code. Resending deletes the old code, so only the newest code is valid.

Code Expiration

Verification codes expire after 15 minutes. Only one code is valid at a time — resending generates a new code and invalidates the previous one. If your code has expired, click "Resend Code" for a fresh one.

Issue 3: Invoice Reminders Not Sending

You have invoice reminders configured but they don't seem to be going out.

Solution: Check Each Condition

Plan requirement — reminders require the Professional or Business plan. Free plan users see an upgrade prompt.

Reminders enabled — go to Settings → Invoice Reminders and make sure the master toggle is ON.

Schedule check — review your reminder schedule and ensure the specific reminders you expect are enabled (not just listed).

Invoice status — reminders only send for sent, unpaid invoices. Paid and voided invoices have reminders cancelled automatically.

Anti-Spam Settings That Block Reminders

These settings are designed to prevent over-emailing, but they may also prevent legitimate reminders:

Skip if communication within X hours

Default: 24 hours. If you sent or received any communication with the client recently, the reminder is skipped.

Skip if invoice status changed within X hours

Default: 6 hours. If the invoice status just changed (e.g., just sent), the reminder waits.

Business hours delivery

If business hours are enabled, reminders are delayed until the next configured business day and time.

Maximum reminders per invoice

Capped at 10 reminders per invoice. Once the limit is reached, no more reminders are sent.

Issue 4: Email Template Not Being Used

You created a custom email template but invoices are still going out with the default template.

Solution

Check template status — make sure the template is set to "Active." Inactive templates are not available for selection or auto-send.

Auto-send configuration — only one auto-send template per type per organization is supported. Check that yours is the one marked for auto-send.

No custom templates — if no custom templates exist for the type (e.g., invoice delivery), WorkCentral uses the default template automatically. Creating at least one custom template enables the template selection step.

Auto-send skips selection — if an auto-send template is configured, it sends immediately without showing the template selection screen.

Template Variables

Template variables like {{client_name}} require the data to exist in the system. If a variable's data is missing (e.g., no client company name), it results in a blank value — not an error. Check that your client records have all the fields your template references.

Issue 5: Password Reset Email Not Arriving

You requested a password reset but the email with the reset link never showed up.

Solution

Check spam/junk folders — the email comes from WorkCentral's system email address with a "Reset Your Password" button.

Wait 60 seconds between requests — password reset emails are throttled to one per 60 seconds per email address. Requesting multiple times too quickly will be blocked.

Use the link within 60 minutes — reset links expire after 60 minutes. If yours has expired, request a new one from the login page.

Verify the email address — the reset is sent to the email associated with your account. Make sure you're entering the same email you used to register.

Password Reset Limits

Request Throttle

1 request per 60 seconds per email address

Link Expiration

Reset links expire after 60 minutes

Still Having Issues?

If emails still aren't arriving after trying these solutions, the issue may be with your email provider's filtering. Visit our support page for additional help.

What to Learn Next

Email Templates

Create and manage custom email templates for invoices, quotes, and reminders.

Invoice Reminders

Configure automatic reminder schedules, anti-spam settings, and business hours.

Payment Failures Performance