Look at Outlook
There any many email clients but Microsoft Outlook is the right choice!
The best thing about Microsoft Outlook is its high integration with other Microsoft products. One of the leading email clients provides users with very user-friendly interface that I find quite beautiful. The ease of automatic archive creation has created an opportunity not to delete any email ever!
There are not many cons of the Microsoft Outlook but one thing that comes to my mind right away is connected with sending messages with attachments. Sometimes messages are "stuck" in the outbox and are not sent automatically. You need to check your outbox folder every time you send an email with an attachment.