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Volume 30 Issue 14

Slipstick Systems

Issue Date: April 24, 2025 « Previous Issue | Next Issue »

The following articles were included in our Exchange Messaging Outlook (EMO) newsletter published on April 24, 2025.

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

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Today's Highlights »

  • Using Outlook’s Reply to Field
  • Email Hoarders
  • Automatically BCC?

Using Outlook’s Reply to Field

New Outlook has a new option for “Show Reply to” on the Options tab when composing a message.

So what is the purpose of the Reply to field and when should you use it?

The "Reply to" feature is used to direct responses to an alternate email address or multiple addresses. This functionality has been available in most email clients for many years. Prior to the advent of automatic account setup, users needed to configure their accounts manually and many entered their address in the Reply to field, even though it was not necessary. However, some users did not enter their complete email address, resulting in bounced replies. This issue has become less frequent now that many email clients only need the user's email address and password for account setup.

When an address is entered in the Reply to field, any response from the recipient will be directed to that specific address, regardless of whether they select Reply All. Although CC'ing the other address and relying on the recipient to use Reply All is an option, using the Reply to field prevents the other mailbox from being cluttered with unnecessary emails.

Generally, using the Reply to field is not needed. However, it can be useful when changing your personal address and people still use the old address. When you reply, use the reply to field so future responses go to the new address. Additionally, it can be helpful for event planning, as responses to email invitations can be sent to a different person or mailbox to track the responses.

Business users can use it when they want follow-ups going to their assistant. If both the original sender and the other person should get the reply, enter both addresses in the Reply to field.

In the new Outlook, you need to use the Reply to field every time you want to change where responses are sent to; there is not a global setting to apply to all email (which would be helpful if you are changing addresses.)

POP and IMAP accounts in Classic Outlook have a global reply to field (in File > Account Settings > Account name and sync settings), so all messages will go to that address, or you can do it on individual messages, from the Options tab when composing a message. Outlook.com and Exchange accounts can only use it in individual messages.

Email Hoarders

Are you an email hoarder?

Do you have mail going back 10, 15 or 20 or more years? Including ads and other bulk mail that is long out of date? Do you *ever* look at the old mail?

It is generally recommended to retain emails for a period of 5 to 7 years, although there are exceptions to this guideline. Personal correspondence, such as emails from friends and family members, is one exception. Additionally, emailed receipts for purchases are often retained for longer durations by most people.

Ads and bulk mail generally should be kept for a much shorter period, in days or weeks, not years.

Mailing lists and newsletters typically become outdated within 5 years. Even if they aren't outdates, it's often faster to use a search engine. For example, you remember a discussion in a mailing list about an Excel formula you need, Google will often be faster than Outlook search.

I tend to the hoarder side, in part because I don't always delete ads and bulk mail as it arrives. But I have a business Exchange account, and I can automate the deletion of ads and bulk mail. I use a rule to set a policy to expire mail from specific address or with bulk in the header in 30 days and Exchange deletes it. As the Exchange admin, I can also set a maximum age to keep mail (10 years) unless it is in specific folders that are marked to always keep.

Other email services, including Outlook.com do not have these options, unfortunately. Address-based rules that set a category can make it easier to find and delete the messages, or right click on a message, choosing Find related > Messages from this sender. Then select all and delete.

Automatically BCC?

A user wanted to know if they could have the BCC field auto-populated when creating new emails.

The short version: Outlook does not have an option to BCC all messages. Classic Outlook has an "after sending" rule to CC messages but not BCC. New Outlook does not currently have a rule to CC messages.

Options for classic Outlook include using a VBA macro or a COM Add-in. A template with the address in the BCC field is also an option and will work in either classic or new Outlook, but it’s less convenient to use. While you can save the template to the desktop for easy access, you can’t set a template (or published form) as the default email form.

VBA code samples and links to COM add-ins are in this article.
Automatically BCC All Messages

Use VBA or in templates to classic Outlook's jump menu:
How to Open Outlook Templates and Files using Toolbar Buttons

New & Updated Microsoft 365 & Exchange Server Support Articles

InvalidTimeZoneException after installing November 2024 SU (Version 1 or Version 2)

Exchange Hybrid Dedicated App in Entra ID for Exchange 2016 CU23 and Exchange 2019 (CU14 and CU15)

InvalidTimeZoneException after installing November 2024 SU (Version 1 or Version 2)

Hotfix update for Exchange Server 2019 CU15: April 18, 2025 (KB5050672)

Hotfix update for Exchange Server 2016 CU23: April 18, 2025 (KB5050674)

Hotfix update for Exchange Server 2019 CU14: April 18, 2025 (KB5050673)

New & Updated Outlook Support Articles

Classic Outlook display language is English only when installed via standalone download

Classic Outlook jumps when scrolling Newsletter emails

CPU spikes when typing in classic Outlook for Windows

Inbox shows incorrect number of unread items in Outlook for Mac

Legacy Outlook for Mac emails are not grouped in Conversation threads as expected for Exchange OnPremise/Office 365 and Google accounts

Users may notice that the incorrect timeslot is selected after clicking a meeting in the Calendar

Word, Excel, or Outlook might stop responding after installing the KB5002700 security update for Office 2016

Other Resources

Licensing and pricing updates for on-premises server products coming July 2025 | Microsoft Community Hub

Volume 30 Issue 14 was last modified: May 2nd, 2025 by Slipstick

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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

Move Deleted Items to Another Folder Automatically

Open Outlook Templates using PowerShell

Count and List Folders in Classic Outlook

Google Workspace and Outlook with POP Mail

Import EML Files into New Outlook

Opening PST files in New Outlook

New Outlook: Show To, CC, BCC in Replies

Insert Word Document into Email using VBA

Delete Empty Folders using PowerShell

Warn Before Deleting a Contact

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
  • Sync Outlook & Android Devices
  • Sync Google Calendar with Outlook
  • Access Folders in Other Users Mailboxes

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