MS Outlook uses POP3, IMAP protocols which are standard mail protocols to send and receive emails. When you configure the Gmail or yahoo account into the Outlook, lets you choose the setting of any protocol. There are various protocols like POP (post office protocol), IMAP, STMP, MIME etc. POP protocol understands the language of the email and downloads it from your ISP to the mail program and allows you to read the email when you are offline. In other words it receives emails from remote server to your local mail client. As these emails are downloaded to the local system, any changes done in the emails will not be reflected on the mail server. IMAP (Internet Message Access protocol) permit you to access the emails from the internet server. When you request to read a particular email message, it downloads from the mail server. The mail account that uses IMAP always synchronizes with the mail server so that any changes in the mail inbox will be reflected back on the mail server. The main advantage of using the IMAP account is that you can access the email on multiple systems. But this is not the case if you are using POP protocol, the email is deleted from the mail server after it is downloaded by the email client. So, you are not able to access the email on another system. Take care of the settings before only when you prefer to go with MS Outlook.
To recover deleted emails, small changes are implemented in registry. The emails that are deleted or lost accidentally or deleted and emptied from the deleted items folder might be recovered by performing a change in the registry. When you have recognized that your valuable email is deleted and you are not able to recover by making the simple changes in registry or from any other option in MS Outlook, then I suggest you to choose the best pst recovery software that repairs and restore the Outlook data.
You can avoid the situations that arise when emails are deleted or lost by taking some precautionary measures like taking backup of the important Outlook data, not exceeding the maximum size limit of the pst file by cleaning up the emails and organizing them periodically, compacting the PST file to reduce the size of the PST file etc.
Remo Repair Outlook (PST) recovers the deleted or lost emails along with all your attributes and attachments. When this software starts recovering your deleted emails, it creates a new PST file where you have chosen the destination folder to save the recovered data and doesn’t disturb your corrupt PST file. This tool recovers the Outlook data until they are overwritten by the new data on the database. As soon as you recognize the situation it is advisable to use this software immediately to prevent from compacting. Just download the trial version and preview the results once whether all your emails have been recovered or not. Activate the full version if the software is able to recover the Outlook data without any loss.