Setup an email account in Opera Mail (POP3 or IMAP)
Opera Mail is one of the easiest email client in which to setup an email account. In four steps, you will be ready to use Opera Mail to send and receive emails. This tutorial can either be used visually, but we take the time to explain the function of each piece of information requested by Opera Mail's built-in email account setup wizard.
Setup a POP3 or IMAP email account in Opera Mail
To add an email account in Opera Mail, go to Tools > Mail and chat accounts. A confirmation dialog box will open.
Click Yes to create a new email account.
Note that the same procedure is used to add newsgroup subscriptions, or chat (IRC) accounts. RSS feeds, however, are added from the Feeds menu.
Email Account Types Supported by Opera Mail
The first screen that appears lets you choose which kind of account you would like to create in Opera.
Choose either Regular e-mail (POP) or IMAP: which of the two depends on your email provider.
Most email providers or Internet Service Providers (ISPs) use POP (the POP3 email protocol).
Click Next
Email Account Types Supported by Opera Mail
The Opera Mail Wizard's second screen will first prompt you to enter your name: this is where you enter your name as you would like others to see it when they receive your emails.
In the second field, enter your complete email address.
The last (optional) field lets you enter your organization name. This field appears in "email headers", or information not visible by default in most email programs.
Email Account Authentication Credentials and Security
The Opera Mail Wizard's third screen collects information M2 needs to authenticate your email account with the mail server.
Enter your user name. Depending on your email provider, your user name could be either the part of your email address that comes before the "@", or your complete email address, (of the form "user@domain.com"). If you are unsure, check with your email provider or Internet Service Provider.
Then, enter your email password and click Next.
Mail Server Settings & Security
This final screen request your email account's incoming and outgoing mail server information for Opera Mail. It will have filled out for you the most likely candidates.
Opera Mail's email account setup wizard automatically populates the server names with "mail.domain.com", which is the most common configuration (where "domain.com" is your email providers domain name). In doubt, give it a try; you can always change this later.
Use secure connection (TLS) is unchecked by default. Unless your email provider specifically requires it, you should leave it unchecked. Secure authentication is not supported by all email providers.
Leave messages on server is checked by default: this means that Opera Mail will only download a copy of your emails, leaving the originals intact on the mail server. This is ultimately your choice, and doesn't otherwise affect the way Opera Mail works or performs.
Leave messages on server or not? - Advantages and reasons for leaving your emails on the mail server include: it is a shared email account, that multiple people use; you use the mail server as a backup, and you have enough space to feasibly store emails, or have access to the mail server's control panel to clean up old emails now and then.
Email Account Setup Completed
Click Finish. You now you have created your first email account in Opera Mail.
Opera Mail will confirm completion of the email account setup, and offer to open Opera's official Opera Mail Tutorial.
Even if you don't read the tutorial right now, click Yes and bookmark it for future reference. It is well written, and contains some topics not covered in our own Opera Mail tutorial.
We will next show you how to find your way around Opera Mail's interface.
Read the official Opera Mail Quick Start Guide 
Adding Email Accounts in Opera Mail
The first time you setup an email account in Opera Mail, the email account setup wizard will popup, as described above. Since Opera Mail supports multiple email accounts, you can add email accounts later on, the same way.
Managing email accounts in Opera Mail will be covered in a later tutorial, (as will configuring email account settings, on a per-account basis.)