An email delivery error occurred! Causes and solutions

[subornaakter20]

2019-12-26(Updated: 2024-12-10 )
SpamEmail Delivery Basics

Have you ever been surprised by receiving an error email when sending an email ?

In this article, we will introduce the types of email delivery errors, their causes, and how to deal with them.

If you receive an error email, don't panic and be list building for mlm prepared to deal with it.

*Please note that the error messages introduced in this article are just examples. Please note that the error messages you receive will differ depending on the destination mail server.







Table of Contents [Hide]

1. Types of email delivery errors and how to deal with them
1.1. Mistyping the recipient address
1.2. Your mailbox is full
1.3. There is a problem with the destination mail server
1.4. Email size is too large
2. Problems occurring when sending email newsletters
2.1. Being career blocked
2.2. It gets classified as spam
2.3. Domain is specified
3. Determine the correct solution based on the error content
Types of email delivery errors and how to deal with them
There are many types of email delivery errors, and each error has a different response.

First, we will introduce the types of email delivery errors and how to deal with them.



Sending address mistake
A typo or other mistake in the recipient address is one of the most common causes of errors.

In that case, you will receive an error message like the one below.

User Unknown
HOST Unknown
If it's "User Unknown," the part before the @ sign may be incorrect; if it's "HOST Unknown," the part after the @ sign may be incorrect.

If you type in the address manually while checking it visually, mistakes are bound to occur.

If you experience an error in email delivery, the first thing to check is whether you've made this mistake.

Many servers tend to only allow input of Roman letters in lowercase, but be careful as there are also some that distinguish between lowercase and uppercase.

Another common mistake is mistyping symbols such as hyphens (-) and underscores (_).

There is no way to deal with these mistakes other than visually checking for errors. Whenever possible, try to enter addresses using the "copy and paste" method.



Mailbox is full
It is possible that the recipient's mailbox is full and they are unable to receive the email.

In that case, you will receive an error message like the one below.

Message size exceeds remaining quota
ver quota
You will need to take measures such as deleting unnecessary emails to free up space or increasing the capacity.

It is quite possible that important messages may not be delivered in the future, so it is best to get the other party to respond as soon as possible.