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WebHosting 5.0 This article is for 1&1 Linux WebHosting only.


How do I set up POP3 and SMTP on my server?



The POP3 (e-mail boxes) and SMTP (sending e-mail) services are already installed
on your server, and they are ready to use. You can enter any domain connected to
your root server as the POP3 server and SMTP server in your e-mail client.

Although the SMTP service can be used, in the standard configuration it will not
relay any e-mails from external addresses (e.g. your e-mail client) to external
addresses. This setting is intended to offer protection against spam e-mails.
(Spam means that strangers send large number of e-mails via your server.) Of
course, there are ways of sending e-mails via the root server without opening the
sendmail service up for spam messages.

You can set the sendmail configuration to relay e-mails from specific IP networks,
domains or sender e-mail addresses. Moreover the server is configured by default
to accept AUTH SMTP messages. That means that your e-mail client (Outlook, etc.)
needs to log into your mailserver before it will be able to send any messages.


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