Outlook Error 0x80040201Message: "task 'mail.adelphia.net - sending' reported error (0x80040201) : 'unknown error' 0x80040201"
In this article, I am going to elaborate the two different factors which can cause the Outlook error 0x80040201 while sending emails or messages.
This problem mostly generates due to the corrupted Outlook profile. So as a first recommendation, remove the account and create the new one.
Here are the given steps to create a new profile:
If the Outlook error 0x80040201 resolves completely by creating the new Outlook account, then move the archived data into the newly created Outlook account using Import & Export function.
Sometimes, Outlook Error 0x80040201 appears when a user starts using Outlook with a local PST after disconnecting it from the Exchange server. The contacts of GAL still remain in the Outlook in a corrupt form and start showing error code 0x80040201. In short, corruption within the NK2 file or the cached contacts file may also produce these errors which could be fixed by removing and deleting these contacts or NK2file.
To resolve Outlook Error code 0x80040201 or to delete corrupted NK2 contacts, there are two ways that has described below:
The other way is to delete corrupted or damaged cached email address:
If the above solution gets crashed in resolving Outlook error 0x80040201 then move to a third party solution such as Outlook data file recovery which always prove as a positive practice. It helps in fixing all kinds of Outlook errors and retrieve PST files into a healthy format without disturbing the original structure of the file.