Pauline Donore


How many of us have found ourselves working on projects where the number of contacts is continually increasing? Doesn’t it seem like we always end up wasting precious time sharing usernames and passwords among colleagues (who always forget to save them in their browser)?

We know that in bulk email services, this type of situation often arises. You need collaboration between marketers and developers, between designers and editors, but also between teams if your emails concern several departments or countries.

This is why, for several years, Mailjet has been offering you the option of creating sub-accounts to facilitate collaboration. According to the feedback we received at the E-commerce Paris 2016 trade fair, it is also one of our most appreciated features since it remains a differentiating factor in the field of bulk email services, and it is available on request from support and at no additional cost.

Let’s discover together all the possibilities that creating sub-accounts has to offer.

Simplified management

When you create an account, we automatically allocate you an API code. Each user receives a different code, which becomes associated with their sender reputation. This enables us to be alerted if certain emails do not comply with the deliverability thresholds.

When sub-accounts are created, secondary API codes are allocated to them. This enables you to compartmentalize the emails you send.

Separate your transactional emails

Using a secondary API code to separate your marketing emails from your transactional emails is strongly recommended in order to block all your accounts in the event of a problem with deliverability.

Your customers are impatiently waiting to receive their emails to activate their subscriptions or for their order confirmations. These essential emails, which are called transactional emails also have the highest click and opening rates.

Separating marketing and transactional email traffic in your account will enable you to avoid having your transactional messages completely blocked after sending marketing emails with too high bounce or spam rates. Make sure you read our latest article on deliverability to find out about all the best practices and to guarantee the success of your marketing campaigns.

As soon as you sign up for a paid subscription, you have the option of creating sub-accounts by sending a simple request to support. The addition of API codes is only valid on your main account.

  • Go to ‘My account’ and click on ‘Manage main API code and sub-accounts’.


  • You now have access to the button: “Create a new sub-account API code”


  • Give your new API code a name and click on “Create” to obtain a secondary API code for your emails.


  • In our example, we have created two in total to separate our transactional emails from our marketing emails.


  • If you now wish to send Marketing and Transactional campaigns, simply select the corresponding account from the banner that appears at the top of your account and then continue as you usually do:


Provide access to your accounts and sub-accounts

Mailjet offers you the option of sharing access to your account and your sub-accounts with others, in a completely secure manner.

Share your email credits

Providing access to your account rather than creating new ones enables you to centralize your expenses. Since your sub-accounts will share the same subscription as your main account, the collaborators that you grant access to will be subject to the same limitations as your main account..



Sharing access to your sub-accounts with a client or another team from your company enables you to have them benefit from the email credits of the subscription that you have taken out. If they send 5000 emails, they will be automatically deducted from the 30,000 emails allocated to your Bronze plan for example. Since Mailjet pricing is solely based uponthe number of emails that you send, this will not lead to any additional management costs.

Your information secured

By sharing access to your account via our shared management tool, your security remains optimal. Your collaborators only have access to the sub-account that you share with them and they cannot access your main account.

In addition, you can restrict the access rights to your account. For example, you can opt to hide the “Account billing” and “Account configuration” pages and make your collaborator’s experience a lot simpler, while securing your data. Finally, you can change the rights or revoke access at any time.


Work with others without losing control

Work together more easily with your colleagues or your clients by giving them access to your sub-accounts, while keeping an eye on their campaigns.

Let’s look at two examples to get a better understanding of the possibilities on offer:

Develop a sound global and local strategy with sub-accounts.

If your company has subsidiaries in foreign countries or has different points of sale that send out local campaigns, you know that customization has limits and that it is important to have a consistent brand image between the various entities.

In order to simplify the work of your teams, the people in charge of the email service should each have a different sub-account. This is the ideal solution for simplifying their use of the tool while giving you the possibility of checking that they are complying with your global strategy.

You only have one invoice to pay for all your teams, and they can benefit from your email credits according to their needs.

  • Start by creating as many sub-accounts as you have teams in charge of email campaigns as we did previously to separate your marketing and transactional traffic.


  • To give your collaborators access to these sub-accounts, go to “My Account” and then “Account Sharing” and then click on the “Define access” button:


  • Enter your collaborator’s email and then select the sub-accounts that you wish to share with them. Here we want to share the English-speaking emailing accounts so we share the “US Marketing” and “UK Marketing” sub-accounts:


  • Define below the pages of the sub-accounts that you do not wish them to access. Here we remove the billing and configuration pages from the account, as well as the Transactional page because this account will only be used to send Marketing emails:


  • Click on “Add”. Your collaborator simply has to click on the activation links of the emails received in their inbox and connect to their account using their login details to validate this sharing.


  • Your English-speaking email campaign manager now has access to the two sub-accounts ‘US Marketing’ and ‘UK Marketing’ with the requested limits:


All your customers within reach.

If you are an agency, you will have a number of clients who ask you to run their emailing campaigns. Creating one sub-account per client will enable you to simplify the task:

  • You will then be able to have access to the statistics on each of your clients separately.
  • If one of your clients lowers their sender reputation due to a poor contact list, this will not have any impact on the rest of your portfolio since their email streams are separated.
  • You do not need any technical knowledge to set up your sub-accounts.
  • On sharing a sub-account with your clients, you can give them access to the statistics on their campaigns only to facilitate the reporting.
  • You have the advantage of single billing, irrespective of the number of sub-accounts that you decide to create.

Did you know that we offered this sub-account feature at Mailjet? Are you interested in it? Please give us your opinion on Twitter and be sure to follow us because we have more good news to announce about shared accounts.