It is very annoying and frustrating to send an important business email to India, only to have it "bounce back" and fail to deliver. You are left wondering why this happened, especially since it worked before (even yesterday) and looked correct. Everything looked fine, so what happened?
Unfortunately, email bounce-backs are classified as random, but there is always some reason behind them. The issue lies in the technical terminology that is confusing and often misused in email messages.
This guide will provide you with the information on why emails cause a bounce back. With this insightful read, you can decipher what these professional email messages indicate and ultimately fix email delivery issues without being an expert.
Bounced email: What does it mean?
A bounced email signifies that your email didn't successfully deliver to the recipient's inbox.
A bounced email doesn't necessarily mean that you entered the incorrect/invalid email address. In fact, it states that the receiving mail server rejected your email for some possible reasons. Bounced email rejection may happen in real time or may occur after a certain number of failed delivery attempts.
There are temporary bounces (bounces that an end user may not even know about) & permanent bounces that will continue until an action is taken to resolve the problem. First, understanding the type of bounce will be necessary in troubleshooting.
Soft bounce vs. Hard bounce
When an email is "bounced," it means that it was never delivered to the intended recipient. There are generally two types of bounces: hard bounces and soft bounces.
● Hard bounces: Hard bounces refer to a permanent failure in delivering an email. This includes reasons such as the email address doesn’t exist, the domain is no longer valid, or the recipient's server has blocked the sender's address altogether. Hard bounces will remain rejected unless the sender opens a new account.
● Soft bounces: These bounces, on the other hand, aren't permanent failures. When an email soft bounces, it is generally because of a full mailbox, a temporary server issue, or the message being too large to deliver at this time, and it may later be delivered successfully.
Common reasons emails bounce back “Randomly”
If an email has bounced once or twice and continues to deliver successfully, it most likely experienced a soft bounce. If there is continual unsuccessful delivery, then it's a hard bounce or something serious.
● One of the leading causes of this is spam filtering. Spam filtering blocks almost all emails from legitimate sources if the sender’s domain has a bad reputation or if an email appears suspicious.
● Another potential cause for a bounce back is a failed authentication. If the sender’s domain doesn't have the required email records that identify it as a legitimate email sender, some email servers reject the email by default.
● Further, temporary failure of servers and essential services causes an email provider to reject an email and not deliver it. When failures occur on email servers, email providers can take time to establish normal service.
In the corporate environment, due to strict security policies, emails from new or unfamiliar senders are also silently rejected by various email providers.
How to read bounce-back messages?
Bounce-back emails are full of confusing codes and technical names, but you don't need to understand all of them to fix the problem.
You should start looking for simple clues that will help you understand why your email didn't go through. If you see phrases such as "mailbox not found" or "no such user," it usually just means that there was a mistake in the email address. Phrases such as "blocked" or "rejected" indicate that your email is being filtered out.
If there is a number error code associated with the bounced email, copy the code and do a search online, as there are many email providers that give you the explanation for the error code in plain language.
When you receive a bounce-back email, don't delete the message immediately or ignore it. This message contains valuable clues about why your email didn't go through, and while you might find it intimidating when you first open it, if you read through the message, you will find the information you need to begin troubleshooting.
How to troubleshoot an email bounce back
The first thing is to check the recipient's email address. It is possible that you have entered the incorrect email address; even small typos can cause an email to bounce back.
Next, you should send a simple email that contains no hyperlinks, no images, and only one line of text. If you can send the simple email, your original email contains something that could be triggering spam filters.
If your emails are going to other recipients and only one recipient is telling you they aren't receiving your emails, then the issue is probably on that recipient's side. If all emails to that recipient have bounced back, then the problem is probably with your email configuration or domain.
You can also check the reputation of your domain by using online email testing tools. These tools check your domains and IP addresses for being blocked or missing any of the required authentication records.
Problems with your email setup
Bounce-back communication isn't uncommon when outreach or technical setup has not been completed correctly for email custom domains. Missing your authentication records leads to emails being considered as spam.
Sending large volumes of email too quickly can also lead to issues. When there is a sudden spike in your outgoing emails (especially with a new domain name), you will likely get automatically blocked by email providers.
To eliminate or reduce the number of bounce-back emails, hosting providers regularly limit the amount of outgoing email for a given timeframe. If you go over those limits, that causes bounce backs as if your email system isn't functioning properly.
How can I prevent bounce-back communication?
Consistent preventative measures can significantly reduce the number of bounce backs.
● Continue to clean out your email list and remove any bouncing addresses.
● Avoid sending bulk emails out of your personal mailbox.
● Utilize proper tools for emailing newsletters & promotions.
● Make sure to properly set up and authenticate your domain email address.
Conclusion
There is no such thing as a random email bounce-back. Each email bounce-back happens for a reason; there are rules, filters, or technical processes being applied to emails as they move from the inbox to the recipient.
If you can read bounce-back messages and identify the basic reasons, you will have a measure of control and avoid being frustrated. There are usually solutions for email delivery problems, as long as you know where to look for them.
Email delivery should not be based on luck but on your ability to align with the sender, the mail server, and the trust associated with both of those entities.
.jpg)
