I have an issue here, appreciate if someone can help or advice.

I am using SmarterMail 12 and having ActiveSync license enabled on my mailbox.

I set it up on Outlook 2013 and notice different behavior based on Outlook account Offline Settings

 

1. If i set the Offline Settings - Mail to keep offline to 1 month
    Every things works great and I get exactly 1 month old of email in all my folders

    Everytime i restart Outlook it gets connected instantly.

 

2. If i set the Offline Settings - Mail to keep offline to All

    Inbox will not be updated with new emails but Outlook says "All folders are up to date", I check on Webmail it is  not the case as I have newer mails there. I tried manual send and receive but no helps.
My oldest email in Inbox on webmail dated 15 Apr 2013, but my Outlook only shows 7 Feb 2014 being oldest
Everytime i restarted outlook, it takes around 2 - 3 minutes before getting connected to server.

 

My mailbox size around 3G

 

Is this an Outlook issue or SmarterMail? appreciate some advice on this

 

thank you