How to fix the issue of error code 550 email in Yahoo?

Posted by George More on September 16th, 2020

Yahoo mail is a global email service launched by Yahoo which is headquartered in Sunnyvale, California. Yahoo mail is one of the best email service providers as it offers four different plans to users. A premium plan for businesses and three plans (basic, plus, and add free) for personal users. Another plus point of using Yahoo is that it also supports non-Yahoo e-mail accounts. Yahoo mail has emerged as one of the top email providers in the world. Yahoo mail has a simple interface where you can easily send and receive emails. The robust interface of Yahoo allows you to send and receive various types of files and media. This mail service is also considered as one of the most secure email service providers. But still, many people reported few errors related to yahoo mail error codes. One of the most common issues faced by lots of Yahoo users is error 550.

Yahoo email error 550 is one of the SMTP errors when there is some kind of errors on your outgoing emails. The user will able to receive emails without any trouble but whenever he tries to send an email an error message appears on the error. You should immediately solve this error before it causes any harm to the mailbox.


What are the symptoms of Yahoo error 550?

• You are getting error 550 pop-ups whenever you are trying to send an email

• Error 550 error message appears when you are trying to send email to a particular recipient

• Your email gets spammed

• Error 550 error displayed on the screen and your Yahoo mail get blocked


What are the common causes of Yahoo email error 550?

Invalid SMTP connection

The declination of the SMTP connection of your mail can also lead to error 550.

Invalid email address

If you are trying to send email to an invalid email address; an error message will appear on your screen

Inappropriate content

Yahoo email gas certain policies for the content. If your content is not as per policies then your email sending request will get declined because my mail app keeps crashing.

Blocked IP address

If your IP address is blocked in Spamhaus then you can send the email via Yahoo

Authentication Failure


If your email can’t verify Domain keys policies then you will receive error 550.


How to fix error 550 email?

Make sure you are sending email to a valid recipient

If you are getting an error 550 email while sending an email to a particular email address then recheck the address carefully. Many times people get confused with alphabets like e/i, 1/l, b/d, etc.

Check for spam messages

Check your sent box and make sure no spam messages are sent from your email address.


Check the content

Yahoo mail has certain policies regarding the type of content. Check the list of content and make sure you are sending appropriate content. Check the following entities before sending the mail:

• IP address reputation

• Sender reputation

• URL reputation

• DKIM signatures

• DMARC authentication

• Domain reputation

Sometimes weak or unreliable internet connection can also lead to error 550 email. If you are unable to fix this error manually then you should ask for technical help.

George More

About the Author

George More
Joined: October 14th, 2019
Articles Posted: 26

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