Outlook.com Moving Addresses From Bcc Field to the TO Field When Email is Sent via Desktop Email Client

Laurel

Disclaimer

I am but a volunteer here

I have been following your thread since its inception.  This is a peer to peer site staffed mostly by volunteers who have little or no contact to MS.

Because of your extensive testing I have escalated this to someone who MIGHT be able to help.

It is up to MS how this is dealt with.

Woodg:

I thank you for asking - Yes I have. But, who knows when it will be addressed.

I am hoping for several things in the meantime by posting on this forum:

1. That I can help identify results and findings for other people who are having the same problems so they have a better understanding of what is going on and why it is happening to them. That way they can make a decision about how they want to proceed.
2. In hopes that someone reading this forum might come up with some workable solutions in the interim until Microsoft fixes the bug or non-Microsoft desktop email program vendors (e.g. Mailbird, Postbox, Thunderbird) update their products to use Microsoft Exchange. I know I can change my outgoing SMTP to use another email service provider such as Gmail to send my emails. But, some of us want to keep using our Outlook.com, Live.com, Hotmail.com and MSN.com email addresses to get responses.
3. Maybe some of the Microsoft Forum Moderators and MVPs might understand the seriousness of this problem and use their influence to communicate with Microsoft Technical Support personnel to get the problem resolved sooner.

Have you reported this issue to Microsoft?

Microsoft does not use these forums to find issues. You need to report the issue to Microsoft using the Feedback option in Outlook.

Problem

Bcc addresses do not process properly (see situations below) when three events occur concurrently:

• After a person’s Microsoft Outlook.com account is migrated over to the new Outlook Mail processing (“Outlook Mail” shows in the upper left corner of the Microsoft Outlook web page instead of “Outlook.com”);
• Emails are sent using a non-Microsoft desktop email program (e.g. eM Client, Mailbird, Postbox, and Thunderbird); and
• Emails are sent using IMAP through the outgoing SMTP Outlook.com server (smtp-mail.outlook.com Port 587).

Situations

1. When a person does not put an email address in the “To” and “Cc” fields, and puts an email address or a group list into the “Bcc” field, the email addresses from the “Bcc” field are moved to the “To” field after the handoff to the SMTP Outlook.com server.
2. When a person puts email addresses in the "To", "Cc", and "Bcc" fields, the result is that the email addresses used in the "To" and "Cc" fields receive their emails and the email address used in the "Bcc" field never receives the email after the handoff to the SMTP Outlook.com server.

Findings

1. “Bcc” addresses are processed properly when a person uses a web browser to send the emails.
2. “Bcc” addresses are processed properly when a person uses the Microsoft desktop email program (Windows 10 Mail App).
3. “Bcc” addresses are processed properly after a person’s Microsoft Outlook.com account is migrated over to the new Outlook Mail processing and that person uses a non-Microsoft desktop email program with connections using Microsoft Exchange (e.g. an option in eM Client).
4. “Bcc” addresses are NOT processed properly after a Microsoft account is migrated to Outlook Mail as shown in the problem and situations above.

Questions

1. Is Microsoft going to fix the bug that prevents “Bcc” addresses from processing properly as stated in the problem and situations above after a Microsoft account is migrated to Outlook Mail? If yes, when?
2. If Microsoft is not going to fix the bug, is Microsoft going to require non-Microsoft desktop email programs to provide connections through the Microsoft Exchange so “Bcc” addresses are processed properly?