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Volume 31 Issue 8

Slipstick Systems

Issue Date: April 23, 2026 « Previous Issue | Next Issue »

The following articles were included in our Exchange Messaging Outlook (EMO) newsletter published on April 23, 2026.

EMO is a weekly publication. To receive your own copy of EMO by email, subscribe here.

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Today's Highlights »

  • File Sent Messages in Another Folder
  • Phishing Scam for Password Reset
  • New Outlook: Entry Point Not Found Error
  • Microsoft 365 Semi Annual Enterprise Channel is Retiring

File Sent Messages in Another Folder

A user wanted to automate the process of moving sent messages to another folder in new Outlook. Unfortunately, new Outlook doesn't yet have after sending rules so the user is limited to dragging the message to the folder or using Power Automate (or other automation services) to move the messages.

Classic Outlook can use an “after sending rule” to move copies of messages to another folder, leaving the original in the Sent Items folder. To avoid duplicates, uncheck the option to Save sent messages in File > Options > Mail. “Save copies of messages in the Sent Items folder” is in the Save messages section about halfway down. While this will avoid duplicates, you'll need to use a second rule to move messages to Sent Items folder otherwise they won't be saved. Use Stop processing on the first rule and set the second rule to apply to all sent messages (don’t add any conditions).

Note that messages moved using rules will be marked Unread. You can either use a macro to mark them read or use a macro to watch the sent folder and move messages instead of using a rule.

Classic Outlook also has an option to save replies with the original, when the original is not in the Inbox. This is in File > Options > Mail. Under the Save messages section, look for “When replying to a message that is not in the Inbox, save the reply in the same folder”

Classic Outlook also has another option: choosing the folder before sending. Look on the Options tab for the option to ”Save Sent Item To”. Folders you’ve previously used will be listed on the menu or choose another folder.

Choosing the Folder to Save a Sent Message In

Use a macro to move Sent Items

Mark Sent Items as Read After Copying with a Rule

Phishing Scam for Password Reset

Several of my clients received an email that their password expired, and it needed to be reset. The message was from their own address, and they wondered if it was legit.

Having their own address in the From field should be a clue it’s not legit, but at least they asked before clicking the link in the message.

The message said the user could keep their current credential and to click a link to confirm. That should be another clue that it’s not legit as Microsoft does not allow password reuse. (The admin can reset a user’s password and reuse an old password, but users cannot.)

Hovering over the link to keep the password shows it goes to a third party site, not Microsoft. That’s another clue.

While outlook.com users can’t do much to stop these phishing attempts, any email admin can use SPF, DKIM, and DMARC records to quarantine or reject messages not sent using the server designated in the SPF records or signed by DKIM. (Not all email hosts provide DKIM records for their mail services but Microsoft 365 and Google do.)

I checked the affected domains (at mxtoolbox.com) and each one had v=DMARC1; p=none;. Changing it to v=DMARC1; p=quarantine; (or p=reject) will keep message from your address that were not sent using your SMTP server that is listed in the SPF records or signed with a valid DKIM signature out of the Inbox. With p= quarantine, the messages will either go into the Junk Email folder or held in quarantine and p=reject will drop the message instead of delivering it.

New Outlook: Entry Point Not Found Error

There is a bug in new Outlook that affects a few users, mostly people who are using new Outlook on Windows server software.

When the user opens new Outlook, an error comes up: "olk.exe - Entry Point Not Found. The procedure entry point TryCreatePackageDenpendency could not be located in the dynamic link C:\ProgramFiles\WindowsApps\Micosoft.OutlookForWindows_1.2026.407.100_x64_8wekyb3d8bbwe\Microsoft.Windows.Workloads.dll.”

The only option for the user is to click Ok on the error dialog and use webmail.

This is a known bug affecting New Outlook version 1.2026.403.100 (and possibly later builds). Repair or Reset will not fix this. Affected users with Windows 10 or 11 can uninstall Outlook from Settings > Apps then reinstall it from the Windows store. Anyone using Windows Server OS will need to use classic Outlook or webmail for now.

Microsoft 365 Semi Annual Enterprise Channel is Retiring

Microsoft is retiring the Semi Annual Enterprise Channel (SAEC) for Microsoft 365 Office Apps. It was removed as an option for new deployments using the Office Customization Tool (OCT) by April 20. On July 14, 2026, Microsoft will pull SAEC entirely and automatically move any systems still on it to the Monthly Enterprise Channel (MEC)

This means that Microsoft 365 feature updates will be monthly, not delayed 6 months.

Microsoft is doing this to simplify update channel management and ensure users get the most secure, up to date experience. Monthly Enterprise Channel receives updates about one month behind Current Channel but both channels get more frequent feature and security updates than the Semi Annual Enterprise Channel.

Microsoft 365 Admins can check the Microsoft 365 message center for more information.
Upcoming change: Microsoft 365 Apps SAEC and MEC will unify

Exchange Server Resources

Modernizing DNS Security for Exchange Online Mail Flow | Microsoft Community Hub

Change Optics Report released into Public Preview to showcase messages impacted by future changes | Microsoft Community Hub

Message Trace Support Using Graph API is now in Public Preview | Microsoft Community Hub

Announcing Period 2 Exchange 2016/2019 Extended Security Update (ESU) program | Microsoft Community Hub

No Exchange Server Security Updates for April 2026 | Microsoft Community Hub

New & Updated Outlook Support Articles

Auto Translate stopped working in classic Outlook - Microsoft Support

Classic Outlook error when sending from Outlook.com "You do not have permission to send on behalf of the specified user 0x80070005-0x0004dc-0x000524." - Microsoft Support

My Templates are missing from Outlook - Microsoft Support

Outlook 2024 LTSC crashes opening Viva Engage, Yammer, Power Automate, and other emails - Microsoft Support

Outlook on premise Exchange web add-ins stopped loading after updating to Version 2603 - Microsoft Support

Volume 31 Issue 8 was last modified: April 29th, 2026 by Diane Poremsky

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Recent Bugs List

Microsoft keeps a running list of issues affecting recently released updates at Fixes or workarounds for recent issues in classic Outlook (Windows).

For new Outlook for Windows: Fixes or workarounds for recent issues in new Outlook for Windows .

Outlook for Mac Recent issues: Fixes or workarounds for recent issues in Outlook for Mac

Outlook.com Recent issues: Fixes or workarounds for recent issues on Outlook.com

Office Update History

Update history for supported Office versions is at Update history for Office

Outlook Suggestions and Feedback

Outlook Feedback covers Outlook as an email client, including Outlook Android, iOS, Mac, and Windows clients, as well as the browser extension (PWA) and Outlook on the web.

Outlook (new) Feedback. Use this for feedback and suggestions for Outlook (new).

Use Outlook.com Feedback for suggestions or feedback about Outlook.com accounts.

Other Microsoft 365 applications and services




New Outlook Articles

Deleting Auto-Complete Entries No Longer Works

Sync Issues and Errors with Gmail and Yahoo accounts

Error Opening iCloud Appointments in Classic Outlook

Opt out of Microsoft 365 Companion Apps

Mail Templates in Outlook for Windows (and Web)

Urban legend: Microsoft Deletes Old Outlook.com Messages

Buttons in the New Message Notifications

Move Deleted Items to Another Folder Automatically

Open Outlook Templates using PowerShell

Count and List Folders in Classic Outlook

Newest Code Samples

Open Outlook Templates using PowerShell

Count and List Folders in Classic Outlook

Insert Word Document into Email using VBA

Warn Before Deleting a Contact

Use PowerShell to Delete Attachments

Remove RE:, FWD:, and Other Prefixes from Subject Line

Change the Mailing Address Using PowerShell

Categorize @Mentioned Messages

Send an Email When You Open Outlook

Delete Old Calendar Events using VBA

Repair PST

Convert an OST to PST

Repair damaged PST file

Repair large PST File

Remove password from PST

Merge Two Data Files

Sync & Share Outlook Data

  • Share Calendar & Contacts
  • Synchronize two computers
  • Sync Calendar and Contacts Using Outlook.com
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  • Sync Google Calendar with Outlook
  • Access Folders in Other Users Mailboxes

Diane Poremsky [Outlook MVP]

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