Many marketers face the issue of email deliverability while running an email campaigns.Your scalability issues with cold emails can be solved by using inbox rotation. Inbox rotation will assist you in distributing your sending volume over multiple inboxes rather than placing all of your eggs in one basket and increasing the volume on your primary email inbox.

This article will explain what inbox rotation is, whether or not you should use it in your outreach activities, and how it can increase the deliverability of your emails.

What Is Inbox Rotation?

Cold emailers utilize a technique called “inbox rotation,” which entails sending email messages from multiple inboxes rather than from just one.

The one account from which you send emails is the one we refer to as the “inbox.” For instance, [email protected]’s inbox would be different from [email protected]’s.

This lessens the likelihood that any one inbox will be negatively impacted by deliverability issues by distributing the email sending volume across all inboxes.

We include inbox rotation as a basic feature in SendBuzz since it is essential for anyone trying to scale their cold email campaigns without reaching email sending restrictions or running into deliverability issues.

You may also have heard this phrase referred to as load balancing, which is similarly accurate but primarily used in relation to switching between various email servers. Even though most people who send cold emails won’t need to load balance across various servers, inbox rotation will still be advantageous.

How Can Inbox Rotation Help Email Marketers?

Rotating your inbox is an easy process. To begin with, you must add several cold email inboxes to your cold email tool, such as SendBuzz.

The mailbox that sends emails to your prospects will then rotate after you launch a campaign in order to distribute the volume.

If you have five inboxes to switch between and you have 1,000 emails to send, for instance, you can arrange each one to send 200 emails instead of all 1,000 emails in one go.

You can send a lot of cold emails each day or each week without reaching the account’s maximum sending limit.

The inboxes from which you want to send a specific campaign can be predetermined or chosen at random.

What Is the Significance of Inbox Rotation in Cold Emailing?

Now that you have a fair idea about what is Inbox Rotation. So, let’s explore the importance of the feature in cold emailing. Below are ways in which you can use Inbox Rotation for cold emailing :

1. Increase Campaign Scale Without Exceeding Send Limits

Most lead generation and cold emailing companies find it difficult to grow campaigns beyond a certain point.


Well, the majority of cold email services don’t make it simple to send emails from various inboxes. You’ll end up copying email sequences, prospect lists, and campaign copies into the new campaign.

It is possible, but because you must constantly make changes to already effective ads, it is slow and more likely to result in mistakes.

Instead of completing additional steps, inbox rotation enables you to add a fresh inbox to an already running campaign.

2. Effective Method to Prevent Deliverability Issues

Another barrier to growing campaigns is the deliverability of your cold emails. Even a small fraction of your cold email campaign emails ending up in your prospects’ spam folders will have an influence on the number of replies you receive, the number of meetings you schedule, and the amount of money your campaigns bring in for you or your clients.

Spreading the traffic across several inboxes and switching between them will reduce the likelihood that deliverability problems will have an effect on any one inbox.

Additionally, it allows risk to be distributed among inboxes. Your entire agency and sales process will collapse if you rely solely on a single email address to deliver your emails.

If you’re utilizing inbox rotation, you can immediately stop sending from a certain inbox if it’s having issues without having to halt your entire campaign because your other inboxes will take over and be able to handle the volume of sending.

3. Avoid Simple Errors When Creating Campaigns

Without inbox rotation, sending from different inboxes and increasing your sending volume require copying all of your email templates to new campaigns. And it is a repetitive and time consuming process that is prone to many errors.

After that you’ll have to make changes in every campaign if you want to edit the email in your campaigns. For instance, if you want to add a new call-to-action or discuss the advantages of your business in a different way. With the feature of email rotation you can easily achieve that.

You only need to add your inboxes to one campaign when using inbox rotation. Only the original campaign needs to be modified when changes are made, sparing you and your team from having to manually update every little thing.

You won’t need to make any changes if you utilize inbox-specific properties, such as “inbox.signature,” because the campaign will use the signature from the exact inbox the emails are sent from.

What Is the Need for Inbox Rotation for Your Outreach Campaign?

You don’t need to ever switch up your inboxes to be tremendously effective with cold emails.

However, there will come a moment when it’s imperative that you create another cold email account to send from if you’re seeing results and are prepared to scale up your outreach.

Here are few situations where you ought to think about employing it :

1. Does Your Company Depend on Cold Emailing to Get Customers?

Inbox rotation will probably be helpful for you if your company relies on cold email to generate leads for your product/service or for your clients.

If you’re using cold email to generate leads for your company, you don’t want your email campaign to perform worse if you run into deliverability issues. The key to running a business like a lead generation firm is to regularly produce leads for your clients.

It’s crucial to safeguard your outreach initiatives against deliverability issues if you want your firm to run effectively. You may avoid any of your campaigns surpassing sending restrictions and save hours each week by distributing the amount of your campaigns throughout inboxes rather than having to manually clone campaigns whenever you need to.

2. Do You Want a Dependable Method to Follow Significant Campaign Metrics Between Accounts?

The majority of cold email software shows statistics specific to each campaign. To accurately assess your progress if you’re running campaigns from various inboxes, you’ll need to switch between various campaigns and manually tally the results.

Any campaign you send from numerous inboxes will have its stats combined into a single dashboard since SendBuzz is built for scale.

It is simple to determine whether your campaigns are effective, and creating spreadsheets from various data sources to compile your main cold email marketing KPIs for presentation to your agency clients won’t take you hours.

3. Do You Run Large-Scale Cold Emailing Campaigns?

Inbox rotation doesn’t need to be on your radar if you’re a lone startup sending 100–200 cold emails per week.

However, inbox rotation will be essential to scaling if you manage an outreach or lead generation business and must send hundreds or thousands of emails each week.

Managers can also use it to keep track of which team members will receive responses from each campaign or to identify which team members changed a campaign by looking at audit logs.

How to Run Cold Email Inbox Rotation at an Agency?

It’s simple to set up with SendBuzz if you need to start rotating your cold email inboxes. This is how :

1. Configure Your Outreach Inboxes in Sendbuzz

You’ll need to sync your email addresses to your SendBuzz account. With the same email outreach domain that you’re using for your outreach, you can add new ones as needed. In this case, the platform will automatically update the email ID when one email starts delivering emails to spam.

The simplest method to handle this is to adopt a uniform name scheme for your inboxes that corresponds to your typical email organization.

Go to your Settings and select Add Inbox under the sending tab to add your inboxes.

2. Get Your Inboxes Ready

The problem of ensuring good deliverability across all of your inboxes while using numerous ones is another one.

Connect all of your email addresses to Inboxigniter, an email warm-up tool with native SendBuzz integration, to assist you in maintaining the health of every email address you use.

By automatically sending and replying to emails from our network of inboxes, MailFlow (which is free to use) will warm up your icy email inboxes. It demonstrates to ESPs like Outlook and Gmail that you are a dependable sender who consistently receives engagement.

The SendBuzz’s reporting tools allow you to monitor how well your inboxes are functioning, and if any particular inbox is having issues or is being identified by spam filters, you may want to think about removing it. You can also check your IP reputation with the free tool – SPF/DKIM/DMARC Record Checker .

3. Define Each Campaign’s Inboxes

Login into SendBuzz these go to the camping setting and then select the inboxes that you want to utilize when you’re ready to use your inboxes into your campaigns. You have the flexibility to select from a few inboxes or many inboxes according to your needs.

You can also decide whether to make campaigns accessible so that the entire team can view them or private so that only the inbox owner can see them.

You can segment them that way or opt to send from inboxes that aren’t too close to your daily sending limits if various team members are in charge of different campaigns or clients. You will have the freedom to select that option and change the number of inboxes as necessary.

4. Additional Tips to Increase Deliverability

Beyond having several inboxes, there are numerous strategies to increase the deliverability of your emails.

  • Make certain that each email account has SPF and DKIM records. As these records help the ESP’s to identify that you are a legitimate email sender.
  • Spend a week or two warming up your inboxes before sending the frigid email. Use the InboxIgniter  tool to warm up your emails.
  • Create unique properties for each email you send, such as a unique opening sentence for each prospect.

You should pause any campaigns you are now running with that inbox and switch to another while it is fixed if you notice any issues, such as that inbox provider forwarding your emails to spam.

There isn’t a single thing you can do to ensure your emails land in the main inbox. However, integrating all of these suggestions can help prevent your inboxes from getting marked for spam unintentionally.

Conclusion :

Inbox rotation wrapping up is a potent technique for expanding outreach campaigns. One can :

  • Distribute your sending workload among numerous accounts.
  • Simple high-volume campaign management without having to copy and paste your settings and email sequences
  • Consolidate your client campaign metrics into a single location.

SendBuzz has inbox rotation, unlike the majority of cold email applications. You can add a new inbox at any time, which will immediately be added to your campaign so you can start sending emails from it.