Email Sending Limits Overview

Overview

Sending limits are the maximum number of emails your mailbox provider, or MBP, allows you to send from your mailbox per day and hour. Apollo doesn't send emails on your behalf. When you use Apollo for engagement, you send emails via a mailbox connected to Apollo. You can link multiple mailboxes to Apollo, from multiple providers, including Gmail and Microsoft. Each MBP monitors sent emails to ensure you are an individual emailing other individuals, and not a spammer.

Check out the following sections to learn more about email sending limits.

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Mailbox Provider Limits

Mailbox providers each have their own daily and hourly sending limits. However, there are additional unpublished limits based on a variety of factors, including:

• The age of your mailbox
• The recipients receiving your emails
• The type of content in your messages
• The number of spam reports you've received

To maintain a healthy email deliverability rate and keep your domain safe, you should aim to keep your email activity as close to average as possible. The average person doesn't send more than 50 emails a day — even when they're incredibly active via email!

Check out the following sections to access and edit your sending limits for a connected mailbox on Apollo.

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Apollo Sending Limits

Sending limits in Apollo act as an additional safety net to help you adhere to best practices and prevent your MBP from suspending or limiting your email account. To gain more control over the number of emails your team sends via a mailbox connected to Apollo, configure sending limits on Apollo. To keep your email account safe, Apollo advises staying within our recommended limits.

If you want to increase the emails you send but don't want to put your reputation on the line, Apollo allows you to connect multiple mailboxes to increase the total volume of emails you send per day without putting your domain at risk.

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Edit Sending Limits on Apollo

To edit your sending limits:

1. Launch Apollo and click Settings > Mailboxes.
2. Apollo displays the daily and hourly limits for each connected mailbox.

3. To change the limits, click the mailbox you want to edit.

4. Click Reset to default to adhere to Apollo's recommended sending limits.

5. Click Reset to default to confirm. Apollo automatically reverts the sending limits for the selected mailbox to Apollo's recommendations.
6. Alternatively, manually edit the sending limits for daily and hourly, and set the minimum delay between emails.

7. When finished, click Save changes.

8. (Recommended) If you haven't already, configure an unsubscribe link to accompany your email signature. If you give recipients an option to unsubscribe, they're less likely to flag your email as spam.

You have now set email sending limits on Apollo. When you reach your hourly or daily limit for a mailbox, Apollo pauses any scheduled emails until the next hour or day.

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Recommended Sending Limits

Apollo strongly advises you start with the recommended mailbox setting of 50 emails per day, 6 per hour, with a 600-second delay between emails.

While the maximum number of emails you can send from a connected mailbox via Apollo is higher than this, you should start with 50 and monitor your email performance closely. If you notice any deliverability issues, lower your sending limits immediately.

If you need to increase email volume, link additional mailboxes rather than increase your sending limits. Once you consistently achieve a 5% or higher reply rate and you have a strong domain reputation, you can increase the number of emails you send per day. However, even then, remember that higher sending limits often correlate with worse deliverability rates. You increase your sending limits at your own risk.

To send a higher volume of emails without putting your domain at risk:

• Link additional mailboxes. Each mailbox has its own sending limits. Depending on your plan, you can add up to 15 mailboxes per user.
• Integrate with SendGrid or Mailgun. Apollo recommends these integrations if you already actively use SendGrid or Mailgun for transactional or marketing emails. If you don't already use these integrations, consider this Apollo integration partner to help you follow deliverability best practices.

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What Happens When I Hit My Limits In Apollo?

If you hit your daily or hourly sending limits, Apollo automatically places the remaining emails in a Scheduled - Delayed status until the next day or hour that allows a send.

To check the status of your emails:

1. Launch Apollo and click Emails.
2. Apollo displays the status beside each email.

If the status is Scheduled - Delayed, it is likely because you hit your sending limit. If so, Apollo sends the email the following hour or day when the limit refreshes.

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What Happens If My Mailbox Provider Limits or Suspends My Account?

If your mailbox provider suspends or rate limits your email account, it means you've sent too much underperforming content or too many emails per day or hour. You should immediately lower your sending limits on Apollo, check your sequence statistics, edit the email content of any messages that received a high bounce or spam-blocked rate, and follow any further instructions from your email provider to resolve the issue.

Check out Apollo's Guide to Avoid Spam Filters,Email Deliverability Checklist, and Mastering Email Deliverability Webinar to learn more.

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