Outlook Send Receive

I believe Outlook can get email as soon as the email arrives to Exchange server.
In some articles they say that outlook checks for email every 10 minutes…Though if I send 2 emails  from one outlook account to another in the interval of 1 minutes, I can get them right away.

So it is in less than 10 minutes and also  I am not sure why Send/Receive button is there in Outlook.

Thank you
jskfanAsked:
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tsaicoConnect With a Mentor Commented:
Technically the send receive is sending and receiving on Exchange also, but it's relevance is depreciated on a solid fast network, mainly because the connection is always on, so any change on your part or at the server is usually already sent to your session the moment it is processed.  So by the time you click on send/receive, nothing is left to process.  You tend to see action when there are problems with your exchange server, connection, and sometimes profile.  You can also have a huge offline address book, which can take some time to download, since it should be more than just name and email address of your organization  (With all of my clients, I put in position titles, cell numbers, and try to populate as much as I can)

There are other items that are being checked, such as the address book (which is usually what you are seeing when you click send/receive on Exchange account).  But even if you disable auto update schedules, as long as you are connected, the Exchange server will send your updates to your Outlook session.  Usually, the email would have come in on its own if you waited the other couple of seconds, and doesn't bear any weight when dealing with connections or the speed in which your OST will be updated.

So in short, yes, it does technically do something, but generally with Exchange connections over LAN, if you have to push the button to update your OST, then something is wrong with your exchange server or possibly your local workstation.  (I would put it as a 90/10 ratio, with the far majority of issues being at the server)
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QuinnDexCommented:
the send receive is so you can update your emails between Auto refresh time interval, you can set the time interval in settings.

when you send an email and click send you are  initiating a send so the email goes straight away, depending how long your time interval is set at and how long since the last receive will depend on how long it takes for your email to arrive in the second account
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jskfanAuthor Commented:
what is the default auto refresh time interval ?
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QuinnDexConnect With a Mentor Commented:
Outlook send/receive is set to 30 min by default but you can change this by going to

TOOLS > OPTIONS > MAIL SETUP

you will also be able to see what yours is set at
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tsaicoConnect With a Mentor Commented:
If you are on an exchange outlook connection, there is no "check" for new mail.  Any time new mail comes in it will send the new information via MAPI, since it maintains an always open connection to the server.

The send/receive is meant more for the imap/pop accounts, the programmers just didn't add in logic check to add or remove the button based on what types of accounts you have.  The only thing cached really does for you is to keep your mailbox available to some extent when you lose your connection the exchange server for whatever reason and doesn't really have much to do with inbound mail from a receive/send perspective, rather just storage.  

Online mailbox will keep it on the sever, and you will have a minimal ost file and poor performance if your LAN is slow or the server is busy.  If you are on cached, you will generally feel better performance, especially when you have a lot of email, but the trade is at some point, your mailbox has to be downloaded to local machine and this will take local hard drive space.

edit: more technical info on how MAPI works. http://msdn.microsoft.com/en-us/library/aa142548(v=exchg.65).aspx  This is from the 2003 days, but the idea is the same.
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jskfanAuthor Commented:
tsaico:

if I understand your comment, Send/receive is used  only for IMAP/POP emails…

Though I believe, Send/Receive sometimes urges Outlook to retrieve emails from Exchange
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jskfanAuthor Commented:
Thank you
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