- Sep 13, 2018 Hi, it is possible to connect via EWS an account on EXCHANGE 365 ONLINE? Which are the Web Service URL? In my case, the EWS URL is https://sn2prd8004.outlook.
- Apr 15, 2021 Exchange Online is part of the Microsoft 365 and Office 365 suite of products. To manage Exchange Online As an administrator for your Microsoft 365 or Office 365 organization, you manage your organization's Exchange Online service in the Exchange admin center. Here's how you get there.
Exchange Online Microsoft Business Productivity Online Dedicated Microsoft Business Productivity Online Suite Federal More. Less This article describes the various kinds of mailbox permissions that can be granted and how those permissions are granted in Microsoft Exchange Online and in Microsoft Outlook in Microsoft Office 365 dedicated/ITAR. The new Office 365 Message Encryption capabilities make it easier to share protected emails with anybody—inside or outside your organization. Protect sensitive emails Help reduce the risk of unintended disclosure by encrypting and rights-protecting email messages sent both inside and outside your organization.
-->By default, POP3 and IMAP4 are enabled for all users in Exchange Online.
To enable or disable POP3 and IMAP4 for individual users, see Enable or Disable POP3 or IMAP4 access for a user.
To customize the POP3 or IMAP4 settings for a user, see Set POP3 or IMAP4 settings for a user.
Note
If you've enabled security defaults in your organization, POP3 and IMAP4 are automatically disabled in Exchange Online. For more information, see What are security defaults?.
To protect your Exchange Online tenant from brute force or password spray attacks, your organization will need to Disable Basic authentication in Exchange Online and only use Modern authentication for Outlook in Exchange Online. Disabling Basic authentication will block legacy protocols, such as POP and IMAP.
Users can use any email programs that support POP3 and IMAP4 to connect to Exchange Online (for example, Outlook, Windows Mail, and Mozilla Thunderbird). The features supported by each email client programs vary. For information about features offered by specific POP3 and IMAP4 client programs, see the documentation that's included with each application.
POP3 and IMAP4 provide access to the basic email features of Exchange Online and allow for offline email access, but don't offer rich email, calendaring, and contact management, or other features that are available when users connect with Outlook, Exchange ActiveSync, Outlook on the web (formerly known as Outlook Web App), or Outlook Voice Access.
Note
Each time a person accesses a POP-based or IMAP-based email program to open his or her Microsoft 365 or Office 365 email, that user will experience a delay of several seconds. The delay results from using a proxy server, which introduces an additional hop for authentication. The proxy server first looks up the assigned pod server (client access server) and then authenticates against that.
Settings users use to set up POP3 or IMAP4 access to their Exchange Online mailboxes
After you enable POP3 and IMAP4 client access, you have to give users the information in the following table so that they can connect their email programs to their Exchange Online mailboxes.
POP3 and IMAP4 email programs don't use POP3 and IMAP4 to send messages to the email server. Email programs that use POP3 and IMAP4 rely on SMTP to send messages.
| Protocol | Server name | Port | Encryption method |
|---|---|---|---|
| POP3 | Outlook.office365.com | 995 | SSL/TLS |
| IMAP4 | Outlook.office365.com | 993 | SSL/TLS |
| SMTP | Smtp.office365.com | 587 | STARTTLS |
Understanding the differences between POP3 and IMAP4
By default, POP3 clients remove downloaded messages from the email server. This behavior makes it difficult to access email on multiple computers, since downloaded messages are stored on the local computer. But, you can typically configure a POP3 client to keep copies of downloaded messages on the server.
POP3 client programs download messages to a single folder on the client computer (typically, the Inbox). POP3 can't synchronize multiple folders on the email server with multiple folders on the client computer. POP3 also doesn't support public folder access.
IMAP4 clients are much more flexible and generally offer more features than POP3 clients. By default, IMAP4 clients don't remove downloaded messages from the email server. This behavior makes it easy to access email message from multiple computers.
IMAP4 clients support creating and accessing multiple email folders on the email server. For example, most IMAP4 clients can be configured to keep a copy of sent items on the server so these messages are accessible from any computer.
IMAP4 supports additional features that are supported by most IMAP4 clients (for example, viewing message senders and subjects before downloading the entire message).
Send and receive options for POP3 and IMAP4 email programs
POP3 and IMAP4 clients let users choose when they want to connect to the email server to send and receive email. This section discusses some of the most common connectivity options and provides some factors your users should consider when they choose connection options available in their POP3 and IMAP4 email clients.
Common configuration settings
Three of the most common connection settings that can be set on the POP3 or IMAP4 client application are:
To send and receive messages every time the email application is started. When this option is used, mail is sent and received only on starting the email application.
To send and receive messages manually. When this option is used, messages are sent and received only when the user clicks a send-and-receive option in the client user interface.
To send and receive messages every set number of minutes. When this option is used, the client application connects to the server every set number of minutes to send messages and download any new messages.
For information about how to configure these settings for the email application that you use, see the Help documentation that's provided with the email application.
Considerations when selecting send and receive options
The default setting on some email programs is to not keep a copy of messages on the server after they're retrieved. If the user wants to access messages from multiple email programs or devices, they should keep a copy of messages on the server.
For always-connected clients, the user might configure the email application to send and receive messages every set number of minutes. Connecting to the email server at frequent intervals lets the user keep the email application up-to-date with the most current information on the server.
However, if the client isn't always connected to the internet, the user might configure the email application to send and receive messages manually.
Note
If the IMAP4 client supports the IMAP4 IDLE command, email transfers to and from the Exchange Online mailbox might occur in nearly real time.
Office 365 Exchange Admin Center
For the uninitiated, Office 365 is the cloud-based SaaS offered by Microsoft that consists of a comprehensive suite of productivity applications including Microsoft Word, Microsoft PowerPoint, Microsoft Excel, and Outlook for the desktop; and server-based applications such as Exchange and SharePoint.
However, many may be stuck with the dilemma of choosing between Exchange Online and Office 365. The Exchange Online vs Office 365 matchup is confusing because users can either opt-in for only Microsoft’s email solution, Exchange Online, or they can choose the complete suite of productivity applications by purchasing an Office 365 license. If your company is considering a migration to the cloud from on-premises servers running some edition of Microsoft Exchange Server (for example), this could be a genuine decision-making challenge.
Therefore, in this article, we will compare both products including Exchange Online and Office 365 to help you decide whether the former would be enough for you or if it would make more sense to choose the latter.
Is Office 365 different than Exchange Online?
Many assume that Microsoft Exchange Online and Office 365 are two different products altogether. However, this is not categorically true. Exchange Online is simply one of the many products that are included in Office 365, which is a collection of tools rather than being a single product. You can purchase either product without the other; it is possible to opt-in for Microsoft Exchange Online without the Office 365 suite, but you can also purchase the Office 365 Pro Plus edition that doesn’t include Exchange Online.
However, no matter the case, Exchange Online complements Office 365 (and hence doesn’t compete with it). For example, if you choose Exchange Online as a standalone email service now, you can always upgrade to Office 365 later.
What is your business requirement?
If you are looking only for a cloud-based email service, Exchange Online is more than enough. You can choose between two Exchange Online plans: Plan 1 & Plan 2.
Exchange Online Plan 1 offers up to 50 GB storage per user along with the web-based and app-based versions of the Outlook client and enterprise-level email security through Exchange Online Protection.
Exchange Online Plan 2 offers unlimited storage and unified messaging services, with advanced security features like Data Loss Prevention (DLP), In-Place Hold, and hosted voicemails. Generally required by large companies.
However, Office 365 can be considered if you’re looking for a comprehensive suite of collaboration and productivity tools. Depending on your requirements, you can choose between various Office 365 plans such as Office 365 Business Essentials, Office 365 Business, and Office 365 Business Premium. If you are a larger organization with more than 300 users, you may choose Office 365 Enterprise plans: Enterprise E1, Enterprise E3, and Enterprise E5.
Do note that all those editions (Business and Enterprise) include Exchange Online as part of the product package except Office 365 Pro Plus.
The size of your company matters
If you are a small enterprise with no more than, say, 50 members or so, it is fine to migrate to Exchange Online only. This is because we anticipate that as you are a small company, you may not need advanced collaboration features that Office 365 offers. However, if you have a considerable number of employees and you expect your team size to grow further in the future, consider getting some edition of Office 365. With Office 365, you get not only the email solutions of Exchange Online, but you also get business communication tools such as Microsoft Teams and Skype for Business. Ultimately, as your company grows bigger, you are going to need more than just email, and that is where Office 365’s applications come in handy.
What is the nature of your business?
If your nature of business is such that it requires a lot of collaboration, consider going for Office 365. The software package comes with a host of useful applications such as Microsoft Teams, Skype for Business, SharePoint, OneDrive for Business, and more. If you have a service-based company, you can expect your users to collaborate online a lot; therefore, in such cases, Office 365 is the correct choice for your company. However, if your business is such that your users don’t need to collaborate online, Exchange Online is what you must go for as it only offers email functionality.
So, as you see, it all boils down to your company’s requirements. If you are still confused, you can begin by going for Microsoft Exchange Online and then later migrate to Office 365 full suite as your company’s needs grow.
If you would like expert advice and assistance to help you decide and finalize, get in touch with us today!
Office 365 Exchange Online P1