Microsoft Outlook is a popular mail app available free from the App Store. Follow these steps to add your Topmail account.

Settings at a Glance

Incoming Mail (IMAP)

Server imap.topmail.com
Port 993
Security SSL / TLS
Username your email address
Password your password

Outgoing Mail (SMTP)

Server smtp.topmail.com
Port 587
Security STARTTLS
Username your email address
Password your password

Steps

1

Open Outlook

Install Microsoft Outlook from the App Store if needed, then open the app. If you already have accounts set up, tap your profile icon (top-left) → tap the envelope + iconAdd Email Account.

Opening Microsoft Outlook on iPhone
Open the Outlook app on your iPhone
2

Enter your email address

Tap Add Account on the welcome screen. Type your full email address and tap Add Account.

Add email account screen in Outlook
Enter your email address
3

Choose IMAP

Outlook will attempt to detect your mail provider automatically. When it cannot, it will display a list of account types. Scroll down and tap IMAP.

Selecting IMAP account type in Outlook
Select IMAP from the provider list
4

Enter IMAP and SMTP settings

Fill in the server configuration fields:

  • IMAP Host Name: imap.topmail.com
  • IMAP Username: your full email address
  • IMAP Password: your email password
  • SMTP Host Name: smtp.topmail.com
  • SMTP Username: your full email address
  • SMTP Password: your email password
Ports are set automatically. Outlook sets IMAP to port 993 (SSL) and SMTP to port 587 (TLS) when you enter these hostnames. You don't need to change port numbers unless prompted.

Tap Sign In.

5

Complete the setup

Outlook may show a privacy or notification prompt — review and accept as you prefer. Tap Maybe Later when asked to add another account.

Your Topmail inbox will now appear in Outlook's account list.

Troubleshooting

Outlook can't find my account automatically

This is expected — Topmail isn't an auto-detected provider. Simply scroll down past the auto-detected options and select IMAP to enter settings manually.

"Connection failed" or "Authentication error"

Double-check that your username is your full email address and your password is correct. Try logging into mail.topmail.com to confirm your password works.

Can receive but not send

In Outlook, go to Settings → [your account] → SMTP and verify the server is smtp.topmail.com, port 587, with TLS enabled.

Still having trouble? Our team is happy to help. Call +44 117 463 3403 or email support@topmail.com.