How to Troubleshoot Yahoo Email Error Code 550?

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Yahoo mail is one of the most popular and well-known email services. Yahoo gains its popularity because it provides multiple plans; it provides three plans for personal use and one for business. Yahoo is a reliable and robust email service but still, you can face a few errors while using these mail services. One of the common errors people often encounter is Error 550. This error is a type of SMTP error in which the user faces troubles while sending the email. The sender sends the email nut the issue creates on outgoing email and then fails to get delivered. If you are getting Mail Error 550 then you should not try to send the emails.

How to Troubleshoot Yahoo Email Error Code 550

Ways to keep yourself safe from Mail Error 550:

The very first thing you should do is to clear the spam script infection. But clearing the infection is not enough because it can occur again. So, you should block the spam infection to prevent reoccurrence.

As you know, spam scripts often try to get connected with the remote SMTP servers. You can use firewalls that can block all the direct SMTP connections and ensure that all scripts should send mails via the mail server. You can also enable the web application firewall which can prevent spam scripts and bots.

Most of us get usually send 30-40 emails per hour. If you set the limit to 50 mails per hour then the spammer won’t get the chance to send more emails. The email will get into the queue and then we can easily delete the mail from the queue.

Scan the file upload to ensure that every spam is prune so you don’t worry about any kind of harm. You can set up an anti-spam system so all the outgoing emails get scan; if you find any spam then it should be immediately get blocked.

Common causes of SMTP Error Codes 550:

• The email address you have entered is invalid
• Your IP address gets blocked
• Your SMTP connection is not correct
• Getting issues with email address authentication check
• You are trying to send invalid content

Symptoms of Yahoo Mail Error Codes:

• You will unable to access your Yahoo email account
• Unable to send email to any particular email address
• You will get the same error after regular intervals

How to fix Error 550 Email?

One of the easiest ways to fixing this error is by using DNS blacklists. This feature helps to keep spammers away from your Yahoo email account. But ensure that your anti-spam settings should be correctly configured. Otherwise, it will reject all the incoming emails.

If your mail gets listed in the DNS blacklist then most of your email will get a bounce. You will face issues while receiving emails from Hotmail, Google, etc. So, check if your IP gets listed on a blacklist. If yes, it means someone is exploiting the web application vulnerability and trying to upload the spam script. It can also occur when someone gets your credentials and now sending spam messages from your account. Change your credentials immediately.

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