How to set up email accounts on MacOS Mail

How to set up email accounts on Apple MacOS

Below is the setting example based on MacOS High Sierra 10.13.6

1. Start “Mail”, and choose “Other Mail Account”

2. Input your email address and its password

3. Input server details, user login details. (Below is an example for

(please refer to account information email for email server naming)

Incoming Mail via IMAP (email contents stored on server, suitable for multi device users, e.g. mobile user)
IMAP Server : (for SSL) , or (for non-SSL)
IMAP Port: 993 (SSL) , or 143 (non-SSL)
Incoming Mail via POP3 (email contents downloaded to your desktop, suitable for fixed location users, e.g. office user)
POP3 Server : (for SSL) , or (for non-SSL)
POP3 Port: 995 (SSL) , or 110 (non-SSL)


Outgoing Mail SMTP
SMTP Server : (for SSL) , or (for non-SSL)
SMTP Port: 465 (SSL), or 587 (plain-text or STARTTLS)


SSL, TLS are encrypted connections
STARTTLS is Opportunistic TLS encrypted connection (if supported TLS encrypted connection, then use TLS.  Otherwise, use plain-text connection)
Plain-text is standard (non-encrypted) connection

(By default, MacOS will use IMAP (with STARTTLS 143) and SMTP (with TLS 587))

4. Done.


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