February 15, 2022 / Lily Collins

How to Fix SBCGlobal Email 550 Error?

Southwestern Bell Telephone Company, commonly called SBCGlobal, is a wholly-owned subsidiary of the American Telephone and Telegraph Company (AT&T). Today, SBCGlobal email service is used by millions of users from various regions of America. It has managed to boast an adequate customer base from Texas, Oklahoma, Kansas, Arkansas, Missouri, and a portion of Illinois.

In the efforts to offer the best user experience, sometimes there occur technical glitches. One of the most common issues that users encounter is the SBCGlobal email 550 error. In this blog, we will share essential tips and tricks on how to fix SBCGlobal email 550 error.

Table of Contents

Why Does SBCGlobal Email 550 Error Occur?

Wondering the reasons why such error occurs? Here we bring to you the main causes behind the 550 error.

Wrong recipient or invalid email ID of the recipient.
Authentication has been blocked.
If the sender is sending emails from an invalid ID.

Best Ways to Fix SBCGlobal Email 550 Error

The following workarounds will help you fix the tech glitch and will ensure a smooth email experience.

#Reason 1 – Invalid Recipient Address:

It is perhaps the most noticeable reason why SBCGlobal email 550 error takes place. When the user tries to send an email to a wrong email recipient, the error is likely to surface on the screen. Next time you intend to send an email, follow these instructions –

Check whether the recipient email address is correct.
In case of doubt, confirm it with the recipient.
Ask whether the recipient’s servers are error-free.

#Reason 2 – Authentication Blocked:

If the outgoing server settings or SMTP settings are not correct, authentication will fail. Only after fixing this problem, you can send emails without error. Make sure the SMTP settings are correctly configured. Check the steps out if authentication has been blocked.

Open the mail program and look for the SMTP authentication option.
If you find “My Server Requires Authentication”, put a tick mark.
Make sure you have set your SBCGlobal mail account with Live Mail or Microsoft Outlook (third party email client). The authentication process will begin automatically.
Once it is done, tap “Yes” to confirm the setup.

#Reason 3 – Is the Sender Sending Emails from an Invalid ID?

This happens when the sender doesn’t pay much heed and tries to get done with the task quickly. If it is the issue from the sender’s end, the best things to do are –

Be patient and check your username and password before pressing the ‘sign in’ button.
If the account undergoes the verification process, you will have to re-enter the details to confirm.
Make sure you are not adding any special characters while setting up an email ID.
After configuration, it will need 24 hours for the activation process to complete.

Note: Reason #3 doesn’t happen frequently unless the sender has made some mistakes.

After deploying all the above-mentioned solutions, you will surely be able to enjoy a smooth experience. If the issue continues to exist, you have got to contact the customer support team for assistance. SBCGlobal customer support will resolve the issue instantly.

If you are experiencing an error in accessing your SBCGlobal mail account or wondering solutions to fix SBCGlobal email not working on iPhone or looking for ways to recover your mail account, you may try to fix the problem by yourself or seek the professional help.