Access your Kk.iij4u.or.jp (IIJ4U) Account from an Email Program using IMAP

Kk.iij4u.or.jp supports IMAP / SMTP

This means you don't have to use Kk.iij4u.or.jp's webmail interface! You can check your email and send messages using other email programs (like Mailspring, Outlook Express, Apple Mail, or Mozilla Thunderbird). Using desktop email applications can improve your workflow. They typically offer more options, and your email is still available on your computer when you're disconnected from the internet.

Setup Your Kk.iij4u.or.jp Account with Your Email Program Using IMAP

To access your Kk.iij4u.or.jp email account from a desktop email program, you'll need the IMAP and SMTP settings below:

Need a desktop email application? Mailspring is free, packed with great features, and you can try it alongside your existing email program. It's built with love for Mac, Linux, and Windows. 💌

Download Mailspring Free

Learn how to do more with your Kk.iij4u.or.jp (IIJ4U) account

See when your recipients view your emails with read receipts.

See How >

Snooze messages to handle them later and keep your busy inbox clean.

See How >

Remember to follow-up if no-one replies using reminders.

See How >