Who is this article for?

Administrators who are getting emails to update azure blob storage.

administrator permissions are required.

Some Ideagen Mail Manager Enterprise administrators have received an email from Microsoft about migrating their Azure Blob storage from general-purpose v1 (GPv1) to general-purpose v2 (GPv2) by 13 October 2026.

Understanding the notification

The notification relates to the temporary storage that Ideagen Mail Manager Enterprise uses to function when tagging your organisation's email.

The Ideagen Mail Manager Enterprise developer team will address this with an update to the email tracking service, tentatively scheduled for 15 July 2026. You will need to upgrade your email tracking service as detailed here - Setting up email tracking and automation

after the new version is out.

Or you can just let Microsoft update your account automatically or complete the update yourself as below.

Upgrading the storage account yourself

If you wish to upgrade the Azure storage account yourself before the scheduled update, follow the guidance below.

Note: The upgrade is permanent. A GPv2 account cannot be reverted to GPv1.

Selecting the appropriate access tier

When upgrading from GPv1 to GPv2, select Hot as the account's default access tier. Avoid selecting Cool.

The Email Tracking service is an active, operational data store that keeps filing status synchronised across recipients to prevent duplicate filing effort. The data is read and written frequently and needs immediate, low-latency access.

The Hot tier is designed for this workload. It has the lowest access (transaction) costs in exchange for slightly higher storage costs.

The Cool tier can appear cheaper on storage, but for this workload it would likely cost more overall and may affect performance. Cool carries higher access costs on every read and write, and applies a 30-day minimum retention. Data updated or removed within 30 days can incur early-deletion charges. Because tracking data is accessed constantly and changes often, these costs add up.

Important: GPv1 does not support per-blob tiering. When the account is converted, your existing data inherits whatever default tier you choose at upgrade time. Setting the default to Hot ensures your existing tracking data is not placed into a more expensive access pattern by default.

Preparing for the upgrade

The upgrade is straightforward and low-risk for the Email Tracking service. It is an in-place operation with no downtime and no data loss. The storage account name, endpoints, connection string and access keys all remain unchanged, so no reconfiguration of Mail Manager is required.

Before proceeding, be aware of the following:

• Review the cost impact first. GPv2 uses a more granular, per-transaction pricing model, which can increase costs for transaction-heavy workloads like email tracking. Model your current usage in the Azure Pricing Calculator beforehand
• Redundancy is preserved. The upgrade changes only the account type, not your redundancy setting (LRS/GRS/etc.), so no change is needed there unless you want one
• Do not rely on auto-migration. Microsoft is retiring GPv1 on 13 October 2026, after which un-upgraded accounts are auto-migrated, potentially at higher cost and without your control over the default tier. Performing the upgrade deliberately lets you set the tier and timing yourself

Your Microsoft account manager can provide more detail around pricing and costings for your specific use case.

Summary

To upgrade your Azure storage account:

1. Choose Hot as the default tier during the upgrade.
2. Expect no changes to the Mail Manager connection.
3. Check the transaction-cost impact against current usage first.
4. Confirm your redundancy setting is as intended.