Email accounts in external mail programs (Outlook, AppleMail, Thunderbird)

We do support IMAP / SMTP. That means you don't have to use our web mailer if you don't want to. You can easily check your mails with other email applications, such as Mozilla Thunderbird, Microsoft Outlook, Apple mail or any other mail client. Through these applications you can be more productive and your mails are even available offline. We will show you which data you need to set this up.

Table Of Contents

Basic knowledge

The mail clients usually all have extensive documentation on how to add an email address. Please note that our support with external tools is very limited. If you have problems with your mails, please always check first if the settings are correct and you have the most frequent. For other problems we have summarized the most common questions in this article. If you don't find answers there, please contact us via mail. 

What is the difference between IMAP, POP3 and SMTP?

Simply put, IMAP is a connection to your email provider's server that is used to receive email. SMTP is used to send emails to other servers. 
IMAP (Internet Message Access Protocol) means that all messages and folders are stored on your own server. This way you can access your e-mails everywhere independently. Since they are stored on your own server, you can access them later on another device. 
SMTP (Simple Mail Transfer Protocol) is used for sending e-mails. It allows an email client to connect to the server and send emails to other servers. With the correct setup, you can send email from anywhere independently. 
POP3 downloads your emails locally and then deletes them from the server. This frees up storage space and the emails are not retrievable with another device. 
The most common use is IMAP. Here you set up your mail accounts on desktop, mobile and other devices and can access them from anywhere. The mails stay on the server - and are secured there. 


Method Server Port Login Information
POP3 (incoming)
  • 995 - SSL active
  • 110 - no SSL 
Username: The email address created in Sitejet
Password: The password stored for this email address
IMAP (incoming)
  • 993 - SSL active
  • 143 - no SSL
Username: The email address created in Sitejet
Password: The password stored for this email address
SMTP (outgoing)
  • 465 - SSL active
  • 25 - no SSL
Username: The email address created in Sitejet
Password: The password stored for this email address

How can I import my old mail? 

With the mail transfer tool you can copy emails from one email account to another email account. You can learn how the mail transfer tool works here.

Issues with your mails

Trying to solve problems with emails can sometimes be extremely simple or extremely complicated. The best way is first to check if you are receiving mails in the web mailer. Also, if mails are being sent correctly from the web mailer. If that is the case, the issues are probably with the settings in the tool you are using. Of course, we are happy to help you with your questions. But before you contact us, please check the most common causes of possible problems with emails
If you still can't find the cause of the problem in this article, please contact us via the support mail. We will then need the website ID and further information about the setup. Please note that our support is limited here, as it may be a third-party problem.

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