Group Migration: The SMTP Address Format Is Invalid
Run preprocessing or configure a valid target email address.
Error Message
Group Migration Error
Error during folders binding: The SMTP address format is invalid.
This error occurs when migrating Google Groups to Office 365 shared mailboxes or unified groups.
Missing Target Configuration
Root Cause
Missing or Invalid Target Name
The migration engine attempts to connect to the target Group Mailbox using a Target Name that hasn't been properly configured. This occurs when:
- • The preprocessing task didn't update the Target Name with a valid email address
- • The Target Name wasn't set to an existing Shared Mailbox or Unified Group email address
Why Target Name Matters
The Target Name field must contain a valid email address that corresponds to an existing Shared Mailbox or Microsoft 365 Group (Unified Group) in your Office 365 tenant.
Solutions
Option 1: Run Preprocessing (Recommended)
Run the preprocessing task to allow the migration engine to automatically create the target object and update the Target Name.
Navigate to Group List
Go to your migration project's group list in Cloudiway.
Run Preprocessing
Select the affected groups and run the preprocessing task. This creates the Shared Mailbox or Unified Group automatically.
Restart Migration
After preprocessing completes, the Target Name will be populated. Restart the migration process.
Option 2: Manual Configuration
If you have an existing Shared Mailbox or Unified Group, manually configure the Target Name.
Verify Target Exists
Confirm the Shared Mailbox or Unified Group exists in your Office 365 tenant and note its email address.
Update Target Name
In the group list, edit the Target Name field and enter the correct email address.
Restart Migration
Save the changes and restart the migration for the affected group.