To add an email account into your iPhone's "Mail" app:
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Open the "Settings" app » "Accounts & Passwords" » Add Account » "Other" » Add Mail Account
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Enter the name, full** [email protected]** email, password, and a short description. Click "Next".
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Assuming you're using IMAP, stay on this tab. For the "Incoming Mail Server", enter
Host Name: mail.domain.com
User Name: [email protected]
and your password.
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For "Outgoing Mail Server", use the exact same settings you used for the Incoming Mail Server (hostname, username password). Note that the outgoing password is not optional, so you must enter it.
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On the next page, ensure "Mail" is enabled, and click "Save".
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It's important to confirm the SSL options are enabled. On the "Accounts & Password" page, click your [email protected] account. It might only show your description, with "Mail" underneath, depending on what you typed. Then click the "Account: [email protected]"
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First we confirm SSL for SMTP in the "Outgoing Mail Server" section, click "SMTP [email protected]" » primary server: mail.domain.com. Once viewing the detailed SMTP server settings, ensure the 'use SSL' option is enabled:
Use SSL: ON
The "Authentication" setting should be set to "Password", and the Server Port set to 587.
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Next we confirm the IMAP settings, so go back so that you're viewing the "Account" page, and at the bottom, there is a link by itself labeled "Advanced". Click it.
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Inside the "Advanced" page, scroll down until you see the "Incoming Settings". We want to see:
Use SSL: ON
Authentication: Password
IMAP Path Prefix: /
Server Port: 993
