Microsoft office Outlook is undoubtedly one of the most applicable and reliable application made especially for the purpose of transmitting emails. Though it provides the users with effective service but still often users using it encounters several issues while sending or receiving mails. Like sometimes in a case if he user is using pop3 account, at that time outgoing mails message stopped working and an error message get displayed on the Outlook window stating that
“Sending reported error (0x800ccc78): ‘Unable to send the message. Please verify the e-mail address in your account properties. The server responded: 550 206.91.xxx.xxx is blacklisted.”
So, in order to make effective utilization of MS Outlook application it is ofcourse very important to fix the Outlook Error Code 0x800ccc78 but before it is also quite essential to know about the scenarios which lead to the occurrence of this errors.
Situations Tending To Outlook Error Code 0x800ccc78:
- Improper closing Microsoft Outlook applications my lead to the occurrence of this error.
- In a case if PST file get saved in a hard drive having bad sectors the Outlook get corrupted and displays error code 0x800ccc78.
- Malware infections in the PST file also leads to the occurrence of this error while sending or receiving email in Outlook.
To fix Outlook Error Code 0x800ccc78, implement the below discussed instructions:
- First of all go to Tools and then Account Settings
- After that open the email account which you are utilizing for this Outlook.
- After that another new window will pop up on the system screen – The internet E-mail Settings.
- Now click on the “More Settings” and then after click the Outgoing Server tab.
- In the next step locate a check on “My outgoing server SMTP requires authentication”.
- Finally at last click on ‘OK’.
Now the above discussed instructions are capable of resolving the issues but still if you are not satisfied with the output then to fix Outlook Error Code 0x800ccc78 it is suggested to make utilization of ‘PST Repair Tool’ since this tool has been referred as an ultimate solution to all the PST related issues. This software do have a very simple user-interface. It being packed with numerous efficient and advance programming skills is capable of repairing PST file corrupted due to any scenario.