Effective method to resolve No valid MBOX files found error

With the increasing demand of professional email clients, software market is flooded with various email clients that are chosen by customers depending upon their needs and demands. These email clients are developed to handle the emails professionally for anyone be it an entrepreneur or a businessman. Each email client stores their emails in one or other kind of file formats which may or may not be supported by other email clients.

What do you want to know?

What is MBOX file?

One such file format is MBOX file format which is supported by various Mozilla based email clients like Apple Mail, Thunderbird, Spicebird, Eudora, Entourage, PocoMail etc. The most striking feature of this file format is that it stores all the emails in one single page where each message is concatenated one after another beginning of which is indicated by 'FROM'.

Facing error "No valid MBOX files found"

Since nothing is perfect, same is the case with each and every email client. There is one or the other problem you are going to face irrespective of the email client. One such error which is encountered by users while importing the MBOX files is “No valid MBOX files found”. Elaborating the situation by taking an example of Apple mail where you are attempting to copy the archived MBOX files into your external storage with the ‘Import’ option available in ‘Menu’. While doing so, you encountered the message which reads "No valid MBOX files found".

In order to resolve this problem, you need to exit your Apple Mail application and locate for the folder which you want to import. After locating the folder, you will find the root folder for each of the email account associated with Apple Mail. Go to that root mailbox folder by navigating down to one level. Here double click on the MBOX file to find the mailbox folder which you want to import. Once the MBOX file which is to be restored is identified, launch your Apple Mail again and click on ‘Import’ under ‘Menu’ option. A wizard will appear where click on the ‘Apple Mail’ option instead of ‘Files in MBOX format’.

This method will help you in performing the successful import of your MBOX files but the method requires a good technical knowledge and hence novice user cannot totally rely on this method.


So, in order to ease the process, it is recommended to use the third-party tool which helps in recovering your MBOX files within single clicks apart from converting the MBOX files into other file formats like PST, EML, MSG or HTML etc. The tool is designed in such a way that even a novice user can work with it like a pro.

It provides both selective and multiple conversion of files depending upon the need of hour and requirement of customer. It also helps users to search for a particular MBOX file in order to restore it based on various searching criteria like ‘To, From, CC, Subject, Attachment’ etc. MBOX to PST Converter tool also provides the trial version which can be downloaded for free.


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