Now that the world of business has made its move to the World Wide Web, a successful enterprise absolutely must have a strong Internet presence and a sensational online marketing campaign if it wants to be competitive. One of the best marketing strategies available is using email as the vehicle to get your word out, but most people don’t realize that there is sometimes a hurdle to get over that can become a roadblock to the unwary, in the form of email throttling!
Email throttling occurs when the Internet Service Provider (ISP) receiving your emails limits the amount they will accept from you, the sender, during a specific period of time. The ability to have your email campaigns’ mail delivered is crucial to your success, if they aren’t making it to their target inboxes they can’t carry your message to the intended recipients, effectively stopping your campaign. One of the easiest ways to avoid this potential blockade is to engage the services of No Limit Email marketing specialists who can ensure your important email messages are delivered! There are some things you can do now to avoid getting blocked, so let’s explore the issue further.
If you are experiencing throttling, it means that your Email Service Provider (ESP) sends out emails to your mailing list, but only the first few sends actually go through. The ISP on the other end throttles your attempts, preventing delivery of the subsequent emails, which causes a soft email bounce. This refusal to deliver the marketing emails you sent is generally temporary, and might be accompanied by error messages like the following:
- This user is currently receiving mail at too great a rate, please try sending it again later.
- This mail is undelivered
- This user’s mailbox has surpassed its quota
- You have gone beyond your daily quota for sending emails
What Causes Email Throttling?
ISPs sometimes set limits on how much mail they will allow to be received from a certain sender during a specific period of time. When your email crosses that invisible threshold, the ISP will automatically reject your requests for delivery, which causes your emails to bounce back.
These limits are based on a variety of parameters such as any abuse complaints lodged against you, your IP (internet protocol) address, your subscriber engagement, spam hit rates, and bounce rates. ISPs tend to limit new IPs to a low threshold of daily volume until they can establish that their sending reputation is above board. Some other situations in which an ISP might reject your email’s attempts at delivery might include:
- Sending emails too fast making the receiving server think it’s spam
- Your email database lists inactive or non-existent addresses
- Some of your email recipients marked your emails as spam
- You’re on a new IP and sending too many emails before you have built a good reputation
- Your recipient’s inbox is full
- The ISP servers are overloaded and don’t have enough ports open to receive more email traffic.
If you are looking for more information on email throttling in the USA visit the Security dot Org website. We hope this article helps you to avoid this practice happening to your email marketing campaign!