Cannot Send Email While Traveling?

This article applies to: Web Hosting Customers with 1&1 Email Accounts

Have you ever travelled with your computer and connected to a hotel or a friend/family’s WI-FI and you can download your email just fine, but replies won’t send and you have no idea what’s wrong?

This is usually the result of authentication issues. In order to prevent strangers from using their SMTP server to send spam, many ISPs require users to authenticate when they try to send email while accessing the server from outside the network. In many cases, users will also need to use a different port number and may need to use SSL.

Confirm Outgoing Server Authentication

We are using Outlook as an example, but these settings are standard in most desktop email programs. Please refer to your software vendor for where to access these settings in your email program.

To check or change the outgoing server authentication, you need to open the Account settings dialog. In Outlook 2010 or Outlook 2013, this is on the File tab, and on the Tools menu in Outlook 2007 and earlier versions.

settings for cannot send email

After opening the dialog to the list of email accounts, double click on the email account then click the More Settings dialog and select the Outgoing server tab to check the authentication settings.

Enable My outgoing server (SMTP) requires authentication and select Use the same settings as my incoming mail server. These settings will often work both at home and when traveling.

UsernameYour full e-mail address i.e. email@domain.comYour full email address i.e.
Incoming Port with SSL Enabled993995
Outgoing (SMTP)
Outgoing Port with TLS enabled465465
Outgoing Server Required Authentication?YesYes

Here are some specific instructions for the most popular email clients:

Microsoft Outlook

Apple iPhone

Apple iPad

Android Devices

Once you make these changes, you should be able to send email from home, coffee shops, or hotels.

If you are unable to get the resolution above to work, there are a couple alternatives.

  1. A free alternative is to use the online webmail portal at and login with your email and password. You will be able to send and receive emails without having to change your email settings on your computer.
  2. One final option is to consider a paid “on the road” SMTP service such as or