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Proxy Manager 4.0

New in version 4.0 - Proxy Manager can now use OAuth for the M365 mailboxes.

Proxy Manager lets you send emails from Outlook using any alias (proxy) SMTP address with an arbitrary display name from your Exchange account, hosted or on-premises. Outlook 2010, 2013, 2016 and 2019 are supported.

There are no server components, everything is done on the client side - just install Proxy Manager, and you are ready to go! Select one of your proxy addresses and click Send.

All you have to do is specify the SMTP server name and password once. If you are using a hosted Exchange mailbox, Proxy Manager knows how to handle most popular hosting providers, such as Office 365, AppRiver, NetVigour, GoDaddy, etc.. For an on-premises installation, you would need to know the SMTP server name and the password. Proxy Manager will take care of everything else!

When you reply or forward, Proxy Manager detects the address the message was sent to and  automatically selects the right sender address on the new outgoing message. Messages sent by Proxy Manager are stored in the Sent Items folder in Outlook, and the non-delivery reports are created in the Inbox. To the end user, it looks like the messages were natively sent by Outlook.


Highslide JS Proxy Manager integrates directly into Outlook.
  It installs itself into the Outlook's "From" dropdown. Just select an address and click Send Highslide JS
Highslide JS Use the Proxy Manager Ribbon controls to see the names associated with each proxy address or to configure Proxy Manager.  
    Click "Configure Proxy Manager Options" to associate custom display names with the existing proxy addresses or specify SMTP server options. Highslide JS


Do you want to send from your Exchange account using any of your proxy SMTP addresses?
Ønsker du at sende fra din Exchange-konto ved hjælp af en af dine proxy SMTP-adresser?
Você deseja enviar a partir da sua conta Exchange usando qualquer um dos seus endereços de proxy SMTP?
Souhaitez-vous envoyer depuis votre compte Exchange en utilisant l'une de vos adresses proxy SMTP ?
Wollen Sie von Ihrem Exchange-Konto mit einer Ihrer Proxy SMTP-Adressen senden?
¿Desea enviar desde su cuenta Exchange utilizando cualquiera de sus direcciones SMTP de proxy?
Vuoi inviare dal tuo account Exchange utilizzando uno qualsiasi dei tuoi indirizzi proxy SMTP?
Wilt u met elk email addres van uw Exchange account email kunnen verzenden?"
How can I use an alternate address with Exchange Server?
How to Send E-mails with Exchange Using a Different “From” Address?
Exchange: How can you use an SMTP address other than your default reply-to from Outlook?
Secondary Email Addresses
smtp alias Office 365
Exchange Server and Secondary Email Addresses
How To Easily Change a User’s Exchange Server Alias and Display Name
proxy SMTP addresses
alias SMTP address
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Send mail from an additional Exchange address or alias
I’ve got a single Exchange mailbox which holds multiple email addresses. I can receive mail sent to any of these addresses just fine, but I cannot find a way to choose which address to send out with.
I’ve tried setting the From field with another address but that got automatically replaced with my default address or a bounce message saying that I don’t have permission to do so.
How can I send out a message with one of my mailbox aliases?
Outlook solution 1: POP3 dummy account
Outlook solution 2: Proxy Manager Add-in
Exchange solution 1: Alias via an AD Contact or Distribution Group
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Aliases on Exchange mailboxes
Method 1: Configure an Active Directory Distribution Group with your alias
Method 2: Use the Proxy Manager add-in
Method 3: Use the ChooseFrom and SmartReply add-in
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Send as alternate email address in Outlook and Exchange
1.Using additional mailbox or recipient(s)
2.Using SMTP clients
3.Using Address Rewriting
5.Proxy Manager – an Outlook add-in