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Switch an existing account to the new servers

Outlook for iPhone and iPad supports IMAP only. If you need POP3, use the “Mail” app – or set the account up here as IMAP.

Step by step

  1. 1

    Open Outlook. Tap your account picture at the top left, then the gear icon at the bottom left.

    ?
  2. 2

    Tap “Accounts”.

    Settings
    Accounts›
  3. 3

    Tap the account you want to change.

    Do you have several mail accounts in this program? Each one has to be changed separately.

    Accounts
    IMAPWork›
    Add Account
  4. 4

    Tap “Edit Login Information”. Do not tap “Remove Account”. Have your password ready: Outlook shows the password fields empty, and you type it again at the end.

    IMAP
    DescriptionWork›
    Edit Login Information
    Reset Account
    Remove Account
  5. 5

    Outlook first shows only a few fields. Switch “Use Advanced Settings” on – only then do the servers appear.

    IMAP

    Email Addressinfo@example.com

    IMAP Password

    Display NameJohn Doe

    DescriptionWork

    Use Advanced Settings

    Sign In
  6. 6

    This is how it looks now: “IMAP Hostname” shows mailin.euregio.net or relay.mailfilter.be, “SMTP Hostname” mailout.euregio.net or relay.mailfilter.be; the user name looks like eu123456.

    IMAP

    Email Addressinfo@example.com

    Display NameJohn Doe

    DescriptionWork

    IMAP Incoming Mail Server

    IMAP Hostnamemailin.euregio.net

    IMAP Port993

    Port SecuritySSL ›

    IMAP Usernameeu123456

    IMAP Password

    SMTP Outgoing Mail Server

    SMTP Hostnamemailout.euregio.net

    SMTP Port587

    Port SecuritySTARTTLS ›

    SMTP Usernameeu123456

    SMTP Password

    Use Advanced Settings

    Sign In
  7. 7

    Under “IMAP Incoming Mail Server”: replace “IMAP Hostname” with imap.mailprotect.be and “IMAP Username” with your full email address. “IMAP Port” 993, “Port Security” SSL.

    IMAP

    Email Addressinfo@example.com

    Display NameJohn Doe

    DescriptionWork

    IMAP Incoming Mail Server

    IMAP Hostnameimap.mailprotect.be

    IMAP Port993

    Port SecuritySSL ›

    IMAP Usernameinfo@example.com

    IMAP Password

    SMTP Outgoing Mail Server

    SMTP Hostnamemailout.euregio.net

    SMTP Port587

    Port SecuritySTARTTLS ›

    SMTP Usernameeu123456

    SMTP Password

    Use Advanced Settings

    Sign In
  8. 8

    Under “SMTP Outgoing Mail Server”: “SMTP Hostname” smtp-auth.mailprotect.be, “SMTP Port” 587; as “SMTP Username” your full email address. If there is a dot at the end of the server name, delete that dot. The row “Port Security” below it must show STARTTLS; if not, tap that row.

    IMAP

    Email Addressinfo@example.com

    Display NameJohn Doe

    DescriptionWork

    IMAP Incoming Mail Server

    IMAP Hostnameimap.mailprotect.be

    IMAP Port993

    Port SecuritySSL ›

    IMAP Usernameinfo@example.com

    IMAP Password

    SMTP Outgoing Mail Server

    SMTP Hostnamesmtp-auth.mailprotect.be

    SMTP Port587

    Port SecuritySTARTTLS ›

    SMTP Usernameinfo@example.com

    SMTP Password

    Use Advanced Settings

    Sign In
  9. 9

    Only if it showed something else: choose STARTTLS and go back with the arrow at the top left. Important: port 587 belongs with STARTTLS, otherwise sign-in fails.

    SSL
    STARTTLS
    NONE
  10. 10

    Now type your password under “IMAP Password” and under “SMTP Password” and tap “Sign In”. Outlook empties both password fields whenever you open “Port Security” or dismiss an error message – always type them again afterwards.

    IMAP

    Email Addressinfo@example.com

    Display NameJohn Doe

    DescriptionWork

    IMAP Incoming Mail Server

    IMAP Hostnameimap.mailprotect.be

    IMAP Port993

    Port SecuritySSL ›

    IMAP Usernameinfo@example.com

    IMAP Password••••••••

    SMTP Outgoing Mail Server

    SMTP Hostnamesmtp-auth.mailprotect.be

    SMTP Port587

    Port SecuritySTARTTLS ›

    SMTP Usernameinfo@example.com

    SMTP Password••••••••

    Use Advanced Settings

    Sign In
  11. ✓

    Done

    Switch another account

    Your settings at a glance

    Incoming server (IMAP)imap.mailprotect.be
    Port 993, SSL
    Outgoing server (SMTP)smtp-auth.mailprotect.be
    Port 587, STARTTLS
    UsernameYour full email address
    PasswordYour mailbox password

    If it does not work

    • The username must be the full email address, for incoming and for outgoing mail.
    • Password rejected? Check upper and lower case. It is your mailbox password – when switching servers, the same one as before.
    • Sending does not work? Try port 465 with SSL for the outgoing server.
    • A certificate warning almost always means a typing error in the server name.
    • Could your program not connect before? Try again after changing the servers.

Modelled on Outlook for iOS (2026). Your program may differ slightly.