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Email Throttling Basics

That being said, more than 290 billion emails are sent and received every 24 hours. But, are all of those billions of emails delivered? There is a specific limit of emails that an Internet Service Provider (ISP)can handle at a particular time.

If an excess amount of emails is sent out by a sender, they might get blocked by the ISP and considered spam. While it might limit your options, but it does come with added benefits and more opportunities for better deliverability of your emails. It allows you to target certain clients during high traffic periods. This is where Email Throttling comes at play.

To understand this better, here’s a detailed insight into Email Throttling basics.

Email Throttling: Basics

“Email Throttling is referred to as the process where you control the number of Email messages that are sent to an ISP or a remote server at a particular instance.”

It enables you to efficiently send emails that ensure deliverability and results in better engagement rates, including improved open-rates and click-through rates. Moreover, it allows you to control your marketing campaigns and maximize your response.

Email Throttling: Causes

The amount of email that an Internet Service Provider (ISP) can accept from a sender at a particular time is throttled or limited. Sending out bulk emails or above the acceptable limit can result in the rejection of your emails.

• Moreover, it adds to higher bounce rates. It affects your overall reputation with your Email Service Provider (ESP), which is dreadful for all business that relyon email marketing campaigns.
• Email Throttling is also referred to as a “deferral.” It might seem restrictive, but the refusal to deliver is often for a short time, depending on the grounds of the ISP. In case your emails are throttled, you will receive a message stating, “User’s mailbox is over quota” or “The user is receiving mails at too high a rate at the moment, please try again later.”
• The message you receive is usually a 400 Class Error (or status code) and is effectively cleared in over 72 hours (3 days). Here’s a list of reasons why an ISP might refuse to deliver your emails.
• Your IP address might not be recognized by the receiving server. In case of the non-recognition of an IP address, your email messages might end up in the spam folder.
• Unavailability of open ports at the receiving end might lead to deferrals.
• The recipient’s inbox is full.

How To Benefit From Email Throttling?

Sending out timely emails that are segmented according to the threshold set by your ISP can lead to certain benefits -for instance, it enables you to send out emails to your more engaging clientele during high-traffic periods. Moreover, it allows you to better interact with your clientele since you would have a limited amount of traffic at a particular period.

• It can also help you manage responses generated from your email marketing campaigns and address them without a huge workload. For starters, email throttling does wonder as every new business requires a warm-up and get-to-know period with the ISPs to develop its online reputation.
• Most bulk email senders (using CBT Mass Email Sender)have a large subscriber list, and when they try sending emails from a new IP, they too require a warm-up strategy. This process is known and the IP warm-up. In the case of no warm-up plan, you might get blocked by your ISP.
• Furthermore, you can get a better mailing list with email throttling. Deferrals are often considered as a soft bounce. These usually have a valid reason for their deferral and can be addressed accordingly. In case of a soft bounce, the inbox might be full, or the email account that you’re trying to reach might be inactive.
• These can help you create trends and keep track of the working emails that actively receive emails, and at the same time, remove once that continuously fail to receive emails.

Email Throttling: How To Steer Away From It?

Email throttling is nothing to be scared of. It is one last step your ISP follows before delivering your email message. To get the most out of the benefits of email throttling and steer away from receiving any warning messages from your ISP and ESP, here are a few steps that you can follow to ensure timely delivery of your emails.

· Schedule your Emails

Rather than sending out hundreds of emails at once, you can send them in groups over an extended period. Furthermore, if you have a completion time for your marketing campaigns, you can schedule them to be sent before the time limit so that all of your emails are sent within due time –Scheduling your emails helps you avoid email throttling.

· Segmenting your Email Messages

To avoid email throttling and get better responses from your email marketing campaigns, you can segment your emails. One way of effectively boosting your email delivery is to divide your lists.

Key Takeaways

• Email throttling limits the number of emails that you can send out per day.
• Email throttling allows you to better implement your marketing strategy, and instead of sending out bulk emails, you can send out emails in groups over an extended period.
• It can also help you clear out any inactive email addresses in your email lists.

Conclusion

Email throttling is the process of controlling the number of emails sent out to an ISP over a certain period. It is implemented by ISPs to prevent spam messages and ensure only the right email messages are sent and received. ISPs use the data from spam reports, bounce rates, open rates, click-through rates, and spam trap hits to determine email throttling limits.

Email throttling allows you to better manage your email marketing campaigns and target more potential clientele in the high traffic hours. Furthermore, it helps you retain your online reputation and build-up your current reputation with your ISP to lower your spam rates and better engage your clientele.