451 5.7.3 STARTTLS is required to send mail Error – office 365

Hello Office365 Admins, while I am working in one of my customer site to migrate mailboxes to office 365 (Exchange online), I faced an issue in the mail flow from local on premise exchange to migrated mailboxes in the cloud, when I checked the queue I noticed that the emails stuck in the queue with …

Continue reading ‘451 5.7.3 STARTTLS is required to send mail Error – office 365’ »

Exchange 2013 Hybrid Configuration wizard – subtask checkprereqs execution failed

Hello All, I worked with one of the customer to deploy Hybrid setup between exchange 2013 and office 365. The customer have two Exchange 2013 servers multi-roles, and after we synchronized local Active directory with azure AD using AD Connect we tried to enable hybrid configuration wizard. once we enabled hybrid configuration wizard we faced the …

Continue reading ‘Exchange 2013 Hybrid Configuration wizard – subtask checkprereqs execution failed’ »

Azure Active Directory Part 2 – Directory Sync Tools

Hello Everyone, In Part 1 of this series, we discussed the concept of Azure active directory and how you can as an IT admin or IT decision maker to offer a single sign on feature for around 2400+ cloud services (SAAS), also we discussed many great features that we can take advantage of it if …

Continue reading ‘Azure Active Directory Part 2 – Directory Sync Tools’ »

Troubleshooting Exchange certificate Issues with Hybrid Configuration Wizard (HCW)

Hell Everyone, sometimes when you try to setup you Exchange 2010/2013 to be in coexistence mode with office 365 – Exchange online, you faced an issue with Hybrid configuration wizard which cannot get your 3rd part exchange certificate even if it’s installed on the CAS servers. Also, simply HCW will not give you the chance to …

Continue reading ‘Troubleshooting Exchange certificate Issues with Hybrid Configuration Wizard (HCW)’ »

Hybrid Configuration Wizard – Stuck at Configuring MRS setting Issue

Hello everyone, Recently i am working in a project to Migrate Exchange 2013 to office 365, The environment include exchange 2013 coexistence with exchange 2007. There is around 20 sites distributed around the world with around 40 exchange servers. when i tried to configure the Hybrid configuration wizard in exchange 2013 it stuck in the …

Continue reading ‘Hybrid Configuration Wizard – Stuck at Configuring MRS setting Issue’ »

Microsoft Office 365 – Operational Guide for beginners

Small businesses can save a good chunk of both time and money by using hosted software tools and harnessing the power of cloud computing. Software as a Service (SaaS) makes great sense for small businesses — you only pay for what you need and someone else does the work of data backup, security and updates. Microsoft recently …

Continue reading ‘Microsoft Office 365 – Operational Guide for beginners’ »

Office 365 – Hybrid Migration Using Exchange 2010

Hello Guys, Another interesting topic to discuss today, we will discuss in this article how to use Hybrid configuration wizard with exchange 2010. Exchange Online Overview: Exchange Online helps protect your information with advanced capabilities. Anti-malware and anti-spam filtering protect mailboxes. Data loss prevention capabilities prevent users from mistakenly sending sensitive information to unauthorized people. …

Continue reading ‘Office 365 – Hybrid Migration Using Exchange 2010’ »

Office 365 – Staged Migration with Exchange 2003/2007

Hello Experts, In this article we will discuss how to migrate mailboxes from on-premise to office 365 using staged migration method. Exchange Online Overview: Exchange Online helps protect your information with advanced capabilities. Anti-malware and anti-spam filtering protect mailboxes. Data loss prevention capabilities prevent users from mistakenly sending sensitive information to unauthorized people. Globally redundant …

Continue reading ‘Office 365 – Staged Migration with Exchange 2003/2007’ »

Exchange Online (Office 365) – How to manage

Hello All, This guide will discuss the main administrative tasks on exchange online, it will discuss the most important functions and options that the IT admins will use usually. Note: You must have a little experience with earlier versions of exchange. As you know, to access exchange online admin page you must be an administrator …

Continue reading ‘Exchange Online (Office 365) – How to manage’ »