Reasons for email delivery failures
Sometimes some of emails may not be delivered to the subscribers. This happens because emails end up in bounce or spam. In InSend you can see which emails were not delivered and why.
The reasons for bounces in each email can be viewed in the "Analytics" step. There are 3 types of bounces: bounced (actually bounced), server spam reports and subscribers complaints. To break down the reasons for bounces, click on the corresponding number in the funnel and in the list on the right you will see the reason for the bounce for each email:
The table shows the reasons for rejection in the form in which they are sent to us by the server. Let us break down what it all means:
Rejected (bounced)
This section contains emails that the receiving server has refused to accept for various reasons not related to suspected spam.
Spam reports
This section contains emails that the receiving server has refused to accept due to a suspicion of spam.
Abuse reports
This section contains emails that were delivered to the recipient's mailbox, but the recipient clicked "This is spam" in the mail service interface.
It should be noted that for technical reasons not all complaints are delivered to InSend. This means that the actual number of complaints may be higher than the number displayed in the email analysis.
If your company needs the most accurate information about the number of complaints about your emails, you should study the feedback loop mechanism. Please note that its configuration is not the responsibility of InSend and must be done by you. To use it with InSend emails, you will also need to connect an additional Dedicated IP address (Business plan) to your account.
Why not all numbers are always visible on the funnel.
In some cases, you may notice that the numbers on your email funnel do not match. For example: 100 emails sent, 90 emails delivered. At the same time, the emails are missing from Bounces and Spam reports, i.e. it is not clear where 10 emails are still "hanging".
This is a normal situation. It can be observed within 72 hours after the email was sent.
Sometimes mail servers may delay or temporarily restrict delivery of your emails for various reasons, responding with "try again later". In this situation, InSend will try to deliver your email again for 20 times within 72 hours. This process must end with either a successful delivery (the email appears in the Delivery section) or a rejection (the email appears in the Bounced section).
Troubleshooting tips
Troubleshooting Bounced emails
A large number of errors in the "Bounced" group is a reason to think about how you collect your database and how you validate subscribers addresses.
Most likely, you do not check the entered address for its truthfulness in any way and use it immediately in your email. A common practice is to send a confirmation email after entering an address. For example, when registering on the website, the user must activate their account by clicking on the link in such a confirmation email. This way we get the guarantee that the email is genuine, written without errors and belongs to this user.
If we talk about ways to manually validate an existing database, we can recommend the following steps:
- Upload all addresses with errors from InSend:
- Carefully check the email column in the received file and try to eliminate the following common errors:
hotmael.com= > hotmail.com
gmal.com = > gmail.com
yaho.com= > yahoo.com
etc.
- The corrected addresses can be uploaded back into InSend using the email interface.
Fewer automated spam messages and complaints.
A large number of spam messages means that your emails look like spam to mail servers.
Try to understand what exactly caused the recipient to mark your email as "spam"? Maybe you send him letters too often. Or your emails look like spam. Or the user has not agreed to receive emails from you.
One of the most effective ways to reduce the number of complaints is to confirm the subscription (double opt-in). In many countries, this procedure is required by law for all emails.