I spent many hours troubleshooting and opening several support tickets with Microsoft, but in the end, I was able to fix the problem on my own. I believe it would be helpful for others to share my documentation of these procedures. The help from Microsoft O365 support was quite disappointing. They seemed to repeatedly ask the […]
As with all previous versions of OWA, Exchange 2013 and Exchange 2016 have a search function that is above the mail column, as seen below. When you do a search in OWA 2013, no results would be showing, no matter what information is the search keywords. No matter what, no search results were found. In Exchange 2013, the […]
By default, Microsoft 365 Defender sets up an Anti-Spam outbound policy. And the policy default sets Automatic Forwarding to “Automatic: System Controlled.” Error: “Remote Server returned ‘550 5.7.520 Access denied. Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS(7555)” Since we do not want to modify this default policy, […]
Exchange 2013 mail flow issue. It turned out to be the Malware agent causing the issue Once it is enabled and the Exchange transport service is restarted, all emails are stuck in the submission queue with “Last Error: Message deferred by categorizer agent.” Check the mail queue Get-Queue -Identity submission Get-Transport Agent will list all […]
Updated: May 2021 iOS devices unfortunately do not register with ActiveSync or other tools with a logical clear human-readable version number. Instead, they show up with strings like “Apple-iPhone3C1/902.206” Obviously, this makes discovery and reporting difficult. To help ourselves, and the community at large, we now maintain this list of hardware and iOS versions for […]
In Exchange Server 2013, the maximum size of the default discovery mailbox is 50 GB. It’s used to store In-Place eDiscovery search results. Before the size limit was changed, organizations could increase the storage quota to more than 50 GB. As a result, discovery mailboxes could grow to more than 50 GB. There are three […]
The goal of email spoofing is to trick the user into thinking an email is from a known and trusted source. Spoofing is done through the manipulation of email elements that are visible to the recipient, primarily the “Body From” field. A spoofed email can be partial or full: Partial Spoof: A partial spoof occurs when […]
SYMPTOMS When sending from a Mobile device via the ActiveSync service the device fails to send. Some devices may return an error indicating that “The message that was sent to the server was rejected because the message was too large”. (Apple iPad iOS). Not all mobile devices behave this way and may just keep the message […]
Admin Method 1: Exchange PowerShell If you are an Exchange administrator, then using the Set-MailboxAutoReplyConfiguration Exchange PowerShell command is the supported and native way to go to enable Automatic Replies without logging on to the mailbox itself. Set-MailboxAutoReplyConfiguration -Identity <username> -AutoReplyState Enabled -InternalMessage “Internal auto-reply message.” -ExternalMessage “External auto-reply message.” Admin Method 2: Exchange Admin Center Another way to […]
I can’t seem to download emails on my iPhone, can sign into OWA and get it working on any version on Outlook, but it won’t download email on iPhone. I’m able to successfully configure the email on phone but when I go into the mail app, and try to download the emails, I get an […]