Reducing your email bounce rate

This article intends to help you to prevent your event's email quota from being blocked due to a high bounce rate. Compliance with the company standards is crucial to ensure the deliverability of your communications. Having a high bounce rate will make emails more likely to be blacklisted by recipient servers (consequently increasing your bounce rate even more), generating IP reputation issues. Furthermore, messages will more likely be labeled as spam if you have a low reputation due to email bounces.

There are two cases in which the mailing could be blocked:

  1. Mailing bouncing back or blocked by the client's ISP
  2. Mailing blocked due to risky e-mail lists.
Please note that your email sending capabilities will be blocked if you reach a 5% bounce rate.

Mailing bouncing back or blocked by the client's ISP

ISP stands for Internet Service Provider. In email marketing, ISP refers to the major email providers: Hotmail, Outlook, Gmail, etc. and it's the job of the ISP to protect their customers (your email recipients) receiving unwanted or unsolicited emails.

One of the methods used by ISP to spam-blocking is blacklists. Just a few spam complaints can land an IP address on a blacklist, even if the ratio of complaints to the volume of email sent is very low.  Unfortunately, these blacklists also contain many legitimate email service providers (ESPs) and sender domains.

Preventing mailing from being blocked by ISP

Even though disabling the email link tracking tool on your event settings will make you lose some data, it will help lower the bounce rate.

To do this, go to Settings> Tools> press Edit and uncheck the Email link tracking tool.

Setting InEvent domain as a safe sender

If you are sending invites to government addresses, it would be recommended to set the InEvent domain as a safe sender since governmental domains usually block this sort of communication.

Mailing blocked due to risky e-mail lists

The InEvent platform could be blocked from sending more e-mails in case too many e-mails bounce back due to poor e-mail health.

To learn more about e-mail health, you can check this article.

Preventing mailing from being blocked

After registration is finished

If you invited all participants or closed registrations for this particular event, you should disable any e-mail classified as unknown or invalid on the Email health page.

To do this, go to Marketing > Communication > email health > press Edit and uncheck the box under the e-mail health column.

This will prevent the platform to send future communication to emails that have already been classified as spam.

During registration

If you are hosting an event that uses invitation only and the registration is still open but the event cannot have more bounces, you can follow the steps below:

  1. Set the event as a draft so the platform will stop sending communication.
  2. Remove the invitees' list
  3. Create a copy of the event
  4. Filter the invitees' list on several platforms, such as Bouncer, Neverbounce, or Hunter.
  5. Upload the clean list to the copied event.
Please note that by reuploading attendees to a new event you will be using the registration credits available in your account.
  1. If anyone has already registered for the original event, they will have to do it again.
If registration is opened to the public, the bounce rate can get affected again.

Reducing the bounce rate

  • Clean up your mailing list and keep it clean. This will improve open rates and engagement with your audience. Do not add bogus emails as they will increase your bounce rate.
  • Generate your mailing lists from a form that asks permission for receiving messages. If you are doing business in the European Union, you may be legally required to do this anyway.
  • Avoid sounding like a spammer. Make sure your emails don't have spammy subject lines that would trigger spam filters on the recipients inbox.

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