SMTP -Auth (SMTP -Authentification) alias ASMTP is a protocol, that prevents the abuse of your e-mail by requiring the clients using e-mail programs to put in a username and password before sending e-mails. In order to make use of this protocol you need to reconfigure your e-mail program (Outlook, Thunderbird), so that it can support ASMTP; and so that it will require the use of a password in order to send e-mails via the outgoing server.
At the end of this article you will also find a general description for other programs should you prefer to use a different program other than Microsoft Outlook or Outlook Express.
Outlook Express For Outlook Express click on the Menu bar
Extras and select
Account. With a left click of the mouse select an existing account and then
properties.
Select the Server tab and check the option My server requires authentication. In the next window, select Use Same Settings as Server.
Click OK to save the changes.
Outlook XP Click on the menu bar
Extras, then
Accounts.
Choose
View or Change Existing E-mail Accounts.
Select an existing account using the left button on your mouse, select
Change, then
Continue.
On the E-mail Accounts screen, click the
More Settings.
Select
Outgoing Server tab. Click the
My Outgoing Server (SMTP) Requires Authentication box.
Click OK to save settings.
Outlook 2000 Click on the menu bar
Extras, then
Accounts. Select
View or Change Existing E-Mail Accounts. Select an existing account using the left button on your mouse, select
Change, then
Continue.
Select the
Server tab. Click the
My Outgoing Server (SMTP) Requires Authentication box, select
Settings.
Select Use same settings as my incoming mail server.
Click OK to save the changes.
Outlook 98 Click
Start 
"
Settings Control Panel Mail.
Select an existing account using the left button on your mouse, then select
Properties to configure the account.
Select on the above tab
Servers and select
My server requires authentication, then select
properties.
Select Use same settings as my incoming mail server.
Click OK to save the changes.
Please click on the menu icon Tools and then E-mail accounts. Select View or change existing account and then with a left click of the mouse select an existing account, now click Change.
Click the box next to More settings and then into the tab Outgoing Server. Place a tick in the box My outgoing server requires authentication. Also place a tick in the box Use same settings as my incoming mail server.
Click OK to save the changes.
You now have the opportunity to send a test message by clicking on Test Account Settings... to verify that all settings are correct.
General description regarding additional e-mail programs.
Please ensure that the e-mail program supports SMTP and can register with an e-mail server.
Mozilla On the toolbar, select
Edit then
Mail & Newsgroups Account Settings....
Select Outgoing Server and click continue.
Enter smtp.strato.com in the section outgoing server, then select edit.
Select User name and password.
Netscape 7 Click on the option edit
e-mail and forum account settings and change to the category Outgoing-Server (SMTP).
Now please activate the option
use name and password and enter your valid e-mail address in the
user name field.
Thunderbird Please click in the options field on
Extras Accounts and then open the category
Outgoing-Server (SMTP). Now please activate the option
use user name and password and enter in the field
user name your valid STRATO e-mail address.
Outlook Express (MacOS) In the menu list select the option
Extras Accounts. With a left click of the mouse select an existing account and then click on
Settings.
Now the account window appears with an overview of the current mail accounts. A double click on the desired account leads you to the dialog field edit account.
Please select the tab Account settings and click Show sending options.
Please tick the option The SMTP server requires Authentication and activate the option Register with. Enter your user name and password and confirm by clicking enter.
For the Account name enter the valid STRATO E-Mail address and enter your personal password.
Unfortunately we are unable to cover all types of e-mail programs in this article – however, you can usually find further information about ASMTP in the help section of the respective e-mail program.
