Your MX record pointed to Exchange Online Protection and you observed that lot email bounced back which was send to an invalid recipient in your organization; you find a solution to stop this, what you will do?
The Directory Based Edge Blocking (DBEB) feature in Exchange Online and Exchange Online Protection (EOP) lets you reject messages for invalid recipients. DBEB lets admins add mail-enabled recipients to Office 365 (Azure AD) and block all messages sent to email addresses that aren’t present in Office 365.
Changing the accepted domain as Authoritative in Exchange Online enable the Directory Based Edge Blocking (DBEB) feature.
What are Accepted Domains and Remote Domains in Exchange Online?
Accepted Domains and Remote Domains are same as On-Premise Exchange. When we add a domain as accepted domain, then the user with that domain can send and receive email.
There are two types of Accepted Domains, Authoritative and Internal Relay. Authoritative option means that email is delivered to email addresses that are listed for recipients in Office 365 for this domain. Emails for unknown recipients are rejected. Internal Relay means that recipients for this domain can be in Office 365 or your own email servers. Email is delivered to known recipients in Office 365 or is relayed to your own email server if Office 365 does not know the recipients.
Remote Domain control the types and the format of messages that your users send to domains outside of your Exchange domain. Here are some of those reasons:
- Restrict users from forwarding emails to other domains.
- Reject automatic messages, such as non-delivery reports and out-of-office replies.
- Send out-of-office replies as those received by people inside your organization.
- Your users frequently send email to a company that supports limited email formats, and you would like to make sure all emails sent to that organization are sent in a format that they can read.
What are the recipients that are supported in Exchange Online? How to convert a Shared mailbox to User Mailbox?
As like Exchange On-Premise, Exchange Online Supports Users Mailbox, Shared Mailbox, Distribution Group, Mail enabled security group, dynamic distribution group, mail contacts, mail users, Room Mailbox and Equipment Mailbox. We can select the Mailbox in Exchange Online Admin center and we will see an option to convert to Shared Mailbox.
What is clutter?
Clutter is a feature in Office 365 designed to help users focus on the most important messages in their Inbox by moving lower priority messages into a new Clutter folder.
You have a requirement for a set of users to view only a set of recipient address in Address Book. How you will achieve it?
We can create Address book policies to achieve this. Address book policies (ABPs) allow you to segment users into specific groups to provide customized views of your organization’s global address list (GAL). When creating an ABP, you assign a GAL, an offline address book (OAB), a room list, and one or more address lists to the policy. You can then assign the ABP to mailbox users, providing them with access to a customized GAL in Outlook and Outlook Web App. It is same like GAL segmentation to have multiple GAL in On-Premise Exchange.
What are the supported Exchange Online Clients? Questions may be asked each protocols individually.
Exchange Online Supports below clients.
MAPI over HTTP – Outlook client now connect Exchange Online using MAPI over HTTP and not RPC over TCP (formerly known as Outlook Anywhere)
OWA – Outlook on the web is a web-based version of the Outlook email program that is used with Exchange Online. It enables users to access their email, calendar, and contacts through a web browser from wherever they connect to the Internet
Outlook for Mac – Exchange Online supports Microsoft Outlook for Mac, which provides email, calendar, an address book, a task list, and a note list
Outlook for iOS, Android, and Windows Phone – Exchange Online works with Outlook apps available for iOS, Android, and Windows Phone. On any of these devices, use the app store to find the Outlook app
Exchange Active Sync – Exchange Online supports the Microsoft Exchange ActiveSync protocol, which synchronizes mailbox data between mobile devices and Exchange Online, so users can access their email, calendar, contacts, and tasks on the go.
POP/IMAP – Exchange Online supports mailbox access through both POP3 and IMAP4 protocols. POP and IMAP access requires encryption-using SSL. POP is enabled by default for all users. Users can view their POP and IMAP connection settings in Outlook on the web
EWS – Applications developed using Exchange Web Services (EWS) or the EWS Managed API let administrators access data stored with Exchange Online from applications that are running on-premises, in Azure, or in other hosted services.
Blackberry Devices – Office 365 email is available on BlackBerry devices via Exchange ActiveSync
What is Exchange Online Protection and what are the features?
Microsoft Exchange Online Protection (EOP) is a cloud-based email filtering service that helps protect your organization against spam and malware, and includes features to safeguard your organization from messaging-policy violations.
- Anti-SPAM Protection
- Anti-Malware Protection
- Transport Rules
- 99.99 SLA
- Mail Routing
- Geo Redundant