Developing Microsoft Exchange ActiveSync client - client

Does anybody know if there are any licensing limitations on developing Exchange ActiveSync client? (like there in the Android/iPhone devices).
We would like to sync Hotmail accounts and ActiveSync sounds like a good way.
I know there is an Exchange ActiveSync Logo Program but i'm not sure whether it's needed for developing a ActiveSync server, client or both.

It doesn't matter if you're developing an EAS client, server or both - Microsoft requires a license for any implementation of the protocol. You need to contact their IP lawyers to get a license agreement in place.

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Outlook 2010 end users + Exchange online server allows Graph API usage?

I'm trying to connect an application I've written with an old on-premise Exchange 2010 server. Obviously this is not supported, I was wondering if Outlook 2010 end users + Exchange online server would allow the use of Microsoft Graph API?
If the Mailbox is an Office365 Mailbox (or you've configured hybrid https://blogs.msdn.microsoft.com/deva/2019/03/16/deep-dive-how-to-configure-exchange-on-premise-server-hybrid-integration-with-office-365-test-rest-api-calls/) then you can use the Graph API to access that Mailbox. The version of Outlook doesn't really matter as the API is strictly service side, but depending on what your actually doing client side you may find a lot client side integration pain and you would be better to upgrade the latest version of Outlook on the clients. That would give you more options when you redevelop your application as you can make use of the new Addin's platform etc.

Free Microsoft Excgange mail accounts

I want to know if there are any free microsoft exchange based email providers available. Reason is that I want to practice coding solutions with exchange web services at home?
outlook.com mailboxes are Exchange 2019. Not sure if the free mailboxes allow to connect using EWS though.

Are there any alternatives Exchange EWS api?

Im currently using the Exchange EWS api to sync two calendars. There is a customer that does not want open up EWS to the public.
Are there any other methods, apis, etc to CRUD Exchange calendars?
DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway. It's implemented in Java and should run on any platform.
It's been a while since I've implemented it on local machines for single app use inside a WAN and also on web facing servers as a general gateway into Exchange for Linux users.
I don't know if it plays well with O365 etc, as I haven't needed to find out yet.
Its a SourceForge project with some sponsorship from the French Defense Agency.

Outlook 2010 with Exchange Online

Does Outlook2010/2013interface with anything other than IMAP or Pop3? If so how? While manual configuration of imap works, the autodiscover wizard is turning up nothing. I have the cname on my 1and1.com pointed to www.mydomain.us. The manual setup for Outlook.com or compatible prompts for a server. Is that supposed to be the same server as specified for the imap?
I am hoping that setup for Outlook clients on pc and laptops is as seamless as it is when the pc/laptop is on a LAN. Can Outlook Anywhere (over https/rpc) be used? If so, how does one obtain the proxy server names and settings?
When it is all setup will the enduser experiance emulate that of Outlook and Exchange 2010 in regards to calender sharing and contacts?
Thankyou for any insight.
I don't know what 1and1.com offers, however you can only use OutlookAnywhere (RPC-over-HTTP) with Exchange 2003-2013.
Outlook 2003-2013 can use IMAP, POP, Exchange MAPI (RPC). With add-ons you may be able to support other protocols, but I've never used any.
For autodiscover to work, you'll usually need Exchange although there are some ways to generate the autodiscover XML without Exchange. Outlook 2010-13 (and I think 2007 too) can try guess the settings for IMAP/POP settings based on your email address, but the server would have to use pretty standard hostnames and ports for it to guess correctly.
IMAP and POP only support email message types and will not sync contacts and calendars between the server and the Outlook client, not natively anyway.

How do I connect to multiple Exchange servers?

I'm working at a client site, and connect to their Exchange 2000 server via web mail. I have Outlook 2007 running as well connected to my companies Exchange 2007 over HTTP.
Is there any way to connect to the client's Exchange 2000 server using anything other than web mail? Ideally, Outlook 2007 would be able to do it, but I don't think that is possible. POP isn't an option, because I need calendaring.
Thanks,
Zach
Unfortunately, Outlook 2007 can only connect to one Exchange server per profile. To get this capability, you can upgrade to Outlook 2010. Outlook 2010 will connect to multiple Exchange servers in a single profile with no problem.
As a consultant, I have the need to connect to multiple email accounts all the time--my current profile is configured to connect to my corporate Exchange server, a client's Exchange server, two different Office 365 (Exchange Online) accounts, two different Google Apps accounts, and a Hotmail account. I love being able to easily navigate among all the different email accounts I regularly use via the native Outlook 2010 UI; I could never go back to multiple browser windows and Outlook profiles!
[I realize this is a 'stale' question, but I noticed it popped up in a search on the topic so I'm posting this answer as this information isn't reflected in any of the earlier answers.]
You can always use more than one Outlook profile.
http://office.microsoft.com/en-us/outlook/HA011471581033.aspx
There is a way of opening 2 Outlook instances running 2 different profiles.
Please see this link -> http://www.pcauthority.com.au/Feature/136036,server-101-access-multiple-exchange-servers-with-outlook.aspx
I dont think outlook will allow more than 1 exchange server connection. One option would be using another email clients like thunderbird to connect to the other exchange server [I haven't tried it though]. In case you need to know how to configure thnderbird to connect to exchange server, here is a link.
You can create multiple profiles in Outlook. You won't be able to open them all at the same time, but you can set outlook to ask you whihc profile to open when you start it.
this is an old link, but the process is essentially the same if dealing with 2003 or 2007.
http://www.cod.edu/it/howdoi/profiles/
hth...
andres
With Exchange 2000, external access is only possible using Outlook Web Access or POP/IMAP. With Exchange 2003 and 2007 you can connect using the outlook client using RPC, but not in 2000.
On a side, you can only have 1 Exchange connection in outlook, so you would have to use multiple profiles.
Apple's Mail Client will connect to any number of Exchange servers at a time. I believe that the Open Source Evolution mail client will similarly do so.

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