How to Send as Alias in Office 365 and Outlook — LazyAdmin To send mail from your alias address in Outlook is pretty simple Make sure that the From field is displayed (otherwise enable it under options) Choose Other email address The next time you can just select the alias from the dropdown menu in the From field
How to Enable Send-As Aliasing in Microsoft 365 Learn how to enable send-as aliasing in Microsoft 365 This step-by-step guide shows admins and users how to send email from alternate addresses in Outlook and Exchange, improving flexibility and professionalism in business communications
Send Messages Using Exchange Mailbox Aliases - Slipstick Systems If you are using Office 365 Exchange Online, see Send using Mailbox Alias Addresses for instructions to send from aliases If you don't have Office 365 Exchange Online, while you can add additional SMTP addresses to an Exchange mailbox, you can only send mail from the default email address assigned to the account
Send from Alias (SMTP Proxy Address) in Exchange Online (Microsoft 365 . . . Exchange Online (Microsoft 365) introduces the ability to send e-mails from an additional SMTP address (alias), assigned to a user’s mailbox Previously in Exchange, you could use the Send As feature as a workaround when you needed to send mail on behalf of another user’s, group’s, or shared mailbox’s SMTP address
Sending email from alias address - Microsoft Q A Based on the description, I understand that you have an issue with sending emails from alias addresses in Outlook Web App To send emails from alias addresses, here are a few things you need to check configure before sending