Hi Everyone:
Due to the issue of Microsoft Outlook client, some customers send us email with a random mail address that we can not reply.
This is a real example:
This problem will cause we can’t contact with customer and can’t help them. The worst things is, customer maybe thinking we don’t care about him. Actually, the truth is we really care about our customer, but we can’t get in touch with him.
So if you are using OUTLOOK, please check this support article and make sure you have the right mail address.
https://support.office.com/en-us/article/fixes-or-workarounds-for-recent-issues-in-outlook-for-windows-ecf61305-f84f-4e13-bb73-95a214ac1230?ui=en-US&rs=en-US&ad=US
We also append the issue and soluation below.
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ISSUE
After connecting to Outlook for Windows (Outlook 2016, 2013, 2010 versions) to your Outlook.com email account, your may experience the following:
Your email account name shows up as outlook_[long series of letters and numbers]@outlook.com in the Folder Pane and when composing emails using Outlook for Windows.
Recipients will also receive the email from the sender with the outlook_[long series of letters and numbers]@outlook.com format.
When recipients reply to the email, the email bounces and you may receive the message “Undeliverable message when you send Internet mail in Outlook.”
This issue only impacts customers using Outlook for Windows. Emails sent via Outlook.com on the web works correctly and emails will be sent with the correct email address.
WORKAROUND
This issue occurs for users with multiple account aliases. We are actively working on a fix. In the meantime, to fix this issue, please do the following:
1. Go to https://account.live.com/names/Manage and sign in to your Outlook.com account.
2 .Set your Outlook.com email as the primary alias.
3. In Outlook for Windows, remove and re-add the account. See the steps in this article: Add your Outlook.com account in Outlook for Windows
