When comparing Blue Mail vs Postbox, the Slant community recommends Blue Mail for most people. In the question“What is the best desktop Email client for Windows 10?” Blue Mail is ranked 5th while Postbox is ranked 7th. The most important reason people chose Blue Mail is:
Offers a lot of different preferences (like Quiet Hours, Custom Sounds, Vibrate, LED Light, Snooze Alerts, etc.). You can set different preferences for each of your accounts.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Highly customizable notifications
Offers a lot of different preferences (like Quiet Hours, Custom Sounds, Vibrate, LED Light, Snooze Alerts, etc.). You can set different preferences for each of your accounts.
Pro Integrated calendar
Pro Supports multiple e-mail accounts
Gmail, Yahoo Mail, Outlook, Alto, iCloud, Office 365, IMAP, POP, etc.
Pro Unified inbox
Pro Clustering of e-mails by sender
Pro Supports Android Wear
Pro Clear interface
Pro Forgotten attachment reminders by default
Reminding the user that they forgot to attach the file if they mentioned one in the body of the email is one of the most useful features of any email client and so many don't include this. Postbox is pre-configured to look for certain keywords (attached, CV, spreadsheet, pdf etc) and you can specify your own keywords in addition.
Pro Blocks tracking gifs
Has the ability to block tracking gifs commonly used for read receipts.
Pro One Inbox for all accounts
All messages in one place. But you can select to show only messages from each account either.
Pro Quick Bar for macros
Quick bar allows you to add a variety of content to your message. It will let you reuse URLS in your Sent folder, and autocompletes against canned responses, signatures, and topics.
Cons
Con No support forum
Support for paid product has no online forums.