Articles on: Frequently Asked Questions (FAQ)

What should I do if my emails are not being accepted by Stock Sync?

If your emails sent to Stock Sync are bouncing or failing to process as feed updates, it is usually caused by email security spam filters or sender address validation requirements.


This guide outlines how to fix delivery issues so your automated email feeds process normally.



Causes and Fixes for Email Delivery Issues


Go to App → Feeds → Email Feed Settings


  1. Verify Your Subscription Plan: Ensure your Stock Sync account is currently on a paid subscription plan.
  2. Check Your Email Security Settings: Review your email provider's outgoing security and spam scoring defaults.
  3. Contact Stock Sync Support: Request domain or email address safelisting if bouncing persists.


Email feed processing is available exclusively on paid plans. Free plan accounts will not process incoming email feeds.



Detailed Troubleshooting Breakdown


1. Spam Filter Rejections (e.g., Error 550)

If your email security system flags outgoing feed emails, Stock Sync's inbound gateway will reject them with bounce messages such as 550 Email is spammy.


Contact your SMTP or email service provider to review the specific rejection details.


Ensure your outgoing email authentication (SPF, DKIM, and DMARC) meets standard delivery requirements.


2. Sender Address Safelisting

If your email provider passes standard spam checks but messages still fail to deliver, your sender address must be safelisted on Stock Sync's side.


Contact Stock Sync support with your sender email address and your assigned Stock Sync forwarding address.


Include the name of your email provider (e.g., one.com, Gmail, Outlook) to assist the technical team in investigating logs.



Key Rules & Technical Details


  • Plan Requirement: Email feed processing requires an active paid Stock Sync plan.
  • Support Safelisting Flow: Once support notifies you that your address is safelisted, resend the feed email to your unique Stock Sync forwarding address to resume normal processing.



Troubleshooting Steps


  • Issue: Received 550 Email is spammy bounce message → Solution: Contact your email service provider to check your domain's outgoing email reputation and authentication settings.
  • Issue: Email sent successfully but feed does not update → Solution: Confirm your Stock Sync account is on a paid plan, then contact support with your sender email and forwarding address to request safelisting.



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Updated on: 20/10/2026

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