Office 365

There are 14 entries in this Category.

Using Office 365 & Exchange Online for SMTP Relay

My current client is getting ready to migrate off of FOPE smarthosts to EOP and there were some questions around how this process goes. And thankfully I can say it’s pretty easy – just point your smarthosts to your MX record, found in the Office 365 portal.

Without delving too much into the process, a fellow O365 admin Mark Kean has written a great blog post on how this process works:

http://marckean.wordpress.com/2013/06/28/smtp-relay-using-exchange-online-protection-eop/

NOTE: You don’t have to setup anther Inbound Connector in Office 365 – this way you avoid needing another SSL certificate. Just use the Hybrid Mail Flow Inbound Connector and add your on-premise IP into the Sender IP Addresses list for the same results.

This process allows you to continue to use onsite applications, MTAs, copiers, etc to process messages from on premise. And you don’t have to setup the arduous SMTP relay through smtp.office365.com via TLS and with an existing account. This relies on the traditional, allowed IP address method to blanket accept everything sent.

I’m happy to say that it even allows you to relay messages from address that don’t even exist in the organization. So lets say you want to send out messages from no-reply@domain.com on an internal mailing system and that mailbox doesn’t exist. EOP processes these messages with no problem.

There’s another great Technet article I like to refer customers to who have questions on the different email methods EOP allows. The article references multi-function devices but this encompasses any number of devices:

http://technet.microsoft.com/en-us/library/dn554323%28v=exchg.150%29.aspx

Exchange Online message limits – not that cut and dry!

Update 4/15/15 – Office 365 has increased the allowed maximum message size to 150 MB, giving Office 365 administrators the ability to set the maximum message size of their choosing from 1 MB up to 150 MB. The default maximum message size for Office 365 mailboxes is still 25 MB, and they don’t plan on to changing the setting on existing accounts.
More at https://blogs.office.com/2015/04/15/office-365-now-supports-larger-email-messages-up-to-150-mb/


I’m currently on project finishing an Office 365 migration (yay – I’m finally back together with my true love: messaging!) and we’re in the process of migrating their 50+ domains off of FOPE, as they were initially a Wave 14 tenant, and over to EOP.  Technically, they were automatically migrated to EOP as part of the upgrades in Q3/Q4 2013, however they still have their MX records pointing to either the mail.messaging.microsoft.com or mail.global.frontbridge.com domains, so traffic is being first routed thru FOPE before it makes it to EOP. And if you may or may not know, it’s crunch time and Microsoft wants everyone off by June 1 (if you have an O365 domain):

http://community.office365.com/en-us/w/manage/update-to-mx-records-faq.aspx

As part of determining the impact these MX record changes will have on message flow, the big one is around accepted message size. In FOPE, if a message went over the size limit you could have it qurantined and the messaging administrator could release it to the mailbox, granted your Receive Connector allowed it, and your MaxReceiveSize on your mailbox matched according.

A large debate has come up around Exchange Online limits, as detailed below:

http://technet.microsoft.com/library/exchange-online-limits%28EXCHG.150%29.aspx

In talking with my collegues, there was a lot of confusion around message limits, and in talking with with my contacts in Microsoft, I can finally clear the air on what these limits are. And it’s actually simpler than you think :mrgreen: Continue reading “Exchange Online message limits – not that cut and dry!” »

Office 365 “Wave 15” Certifications – Part 2: 70-347

I received my results for the beta 70-346 last week and was very happy to see the passing results, so the heat was on to finish my MCSA: Office 365. After some unforeseen circumstances around being unable to take the 70-347 exam while in beta, I pulled in my notes and went today to take the test.

I’m happy to announce that I passed and without further adieu, here is a study guide to help you achieve your 70-347 as well: Continue reading “Office 365 “Wave 15” Certifications – Part 2: 70-347” »

Office 365 “Wave 15” Certifications – Part 1: 70-346

Since July 2013 I’ve been getting more and more engaged in the Cloud and Microsoft’s vision of it though Office 365 deployments. And I’ve learned a lot along the way, even had to deal with some Wave 15 growing pains of performing implementations during this period of transition.
So back in December I had the opportunity to obtain vouchers from Microsoft for the next generation of Office 365 certifications:

70-346 – Managing Office 365 Identities and Requirements
70-347 – Enabling Office 365 Services

During the beta period both exist under their respective 71-346 and 71-347 designations, and today I took 70-346 so I sat down Continue reading “Office 365 “Wave 15” Certifications – Part 1: 70-346” »

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