Runbox Email Settings: POP3, IMAP, and SMTP Servers

Runbox is a complete email service that you may use with your web browser, an email client like Thunderbird, Outlook, Apple Mail, or even your mobile phone. The dependability and versatility of the Runbox email server settings make it crucial to thriving in today’s modern, data-driven environment.

Runbox SMTP Settings

You must first configure an email client setup for SMTP (Simple Mail Transfer Protocol) to send outgoing messages via the Runbox servers.

Below are the SMTP settings:

Option Description
SMTP Host:
SMTP Port: 465 TLS/SSL or 587 STARTTLS
SMTP Username: or just username
SMTP Password: Your email account password

Runbox Mail Settings For Receiving Emails

IMAP synchronizes all emails on the server with your client, which means that you can read all your messages on many different devices, whereas POP allows you to download your emails without storing them on the Runbox servers.

Below are the POP and IMAP settings, respectively:

Runbox Email POP Settings

Option Description
POP3 Host:
POP3 Port: 995
Requires SSL: Yes
POP3 Username: or just username
POP3 Password: Your email account password

Runbox Email IMAP Settings

Option Description
IMAP Host:
IMAP Port: 993
Requires SSL: Yes
IMAP Username: or just username
IMAP Password: Your email account password

Useful Information to Remember

Aside from the email settings, here is another point to consider about using usernames.

Your username and password are required to access the email servers, for starters.

When logged in to your Runbox webmail, your username gets shown above your email list at the upper right. Your username also appears on the account page and the folder list.

Remember, you cannot use the alias addresses to log in.

Notably, other Runbox domains include,,,, and Moreover, under Account → Aliases, you can find a complete list of alternative synonym domains for more options.

Your username may not have changed if you added your domain after receiving a @runbox address, even if you use your domain to send emails. To be doubly sure, check your username in the Runbox webmail.

💡 Tip: Port 465 may be more secure than port 587. In other circumstances, though, port 587 may be more compatible with more mail programs.

Looking for Seznam settings or Rediff settings? Our Blog's Email Settings category contains specs for all major mail service providers.

IMAP or POP3: What is the Difference?

When configuring a mailbox in an email client, you must determine whether you want to use POP3 or IMAP as the delivery method.

Both platforms can connect to a mail server so that you may read your emails through a mail client such as Outlook or Thunderbird. However, there are certain distinctions between them.

To begin, IMAP stands for Internet Message Access Protocol. Essentially, using IMAP, the message does not stay on the local device, such as a computer, but instead remains on the server itself.

POP3, on the other hand, is an abbreviation for Post Office Protocol. POP3 mail will connect to the server and attempt to keep the message on a local device such as a computer or mobile.

In the end, IMAP is preferable if you intend to access your mailbox from a variety of devices, including a work computer and a smartphone; POP3 is more efficient if you only have one device but have a large number of emails.

However, for most individuals, IMAP remains the protocol of choice.

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