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What if I fail to sign up or activate the MERCUSYS ID?

This Article Applies to:
MR30G MR50G AC12G MR60X MR62X MR70X MR80X MR90X MR27BE MR47BE Halo H30G Halo H50G Halo H60X Halo H70X Halo H80X Halo H90X Halo H47BE MR25WBE MR37BE Halo H27BE Halo H25BE MR85X Halo H85X MR25BE Halo H37BE

Introduction

If you don’t receive the verification email when registering for a MERCUSYS ID or resetting your password, it may be due to your email provider blocking MERCUSYS messages or your domain’s SMTP server restricting delivery based on its SPF (Sender Policy Framework) settings. SPF helps verify a sender’s IP to reduce spam, and MERCUSYS’s SPF configuration is compatible with most major email providers. This FAQ explains the common causes and offers practical steps to help you receive the email successfully.

Troubleshooting

Step 1. Check Inbox Storage

Make sure your MERCUSYS ID email inbox is not full. A full mailbox can block new messages, including MERCUSYS verification or password‑reset emails. Delete unneeded emails or files to free up space.

Step 2. Check Email Filter Settings

Review your MERCUSYS ID email filter and spam settings, and confirm no-reply@email.mercusys.com is not filtered out. Here, we use Gmail settings as an example.

Select “Don’t override filters”.

Step 3. Add MERCUSYS to Allow list

Add no-reply@email.mercusys.com to the White list by creating a new filter in your email settings.

In the Gmail Filters and blocked addressed setting page, you can also view the blocked email addresses of your account.

Find the “Create a new filter” option and check your current blocked email addresses."

 

Step 4. Check Email Domain Type and Register a New MERCUSYS ID if needed

Some domains used by small businesses, medical, educational, or government institutions may have strict security policies that block automated emails. These domains are not recommended for MERCUSYS ID registration.

If possible, sign up for a new MERCUSYS ID using a major email provider, such as Gmail or Yahoo Mail.

Note: If the e-mail address you entered has been registered already, try to log into the MERCUSYS app directly. If you forget the password of the MERCUSYS ID, you can try the suggestions by referring to What can I do if I forget the password of my cloud account bound to the MERCUSYS wireless router?