how to get my comcast email set up on outlook for iPhone.

Question

Had an issue in getting my calender on the iPhone Outlook. I was told to delete Outlook app and reinstall, now I can get my comcast email connected via an IMAP sign in.

Answer 1

Hi Chris Doyle,

Welcome to Microsoft Q&A.

After reinstalling Outlook on iPhone, Comcast/Xfinity accounts usually need to be added again, and sign-in can fail if Xfinity security settings block third-party apps.

Email setup (Outlook for iOS – IMAP, Comcast/Xfinity)

Outlook iOS > Settings (gear) > Accounts > Add Account > Email Account > IMAP, then use:

• Incoming (IMAP): imap.comcast.net — Port 993 — SSL/TLS
• Outgoing (SMTP): smtp.comcast.net — Port 587 — STARTTLS/TLS (or 465 with SSL)
• Username: full email address

If IMAP keeps rejecting your password

Sign in to Xfinity webmail, then go to Settings > Security and make sure “Third‑Party Access Security” allows third‑party apps (enabled/checked). This setting commonly blocks Outlook/mobile clients even when webmail works.  Also, if you have Two-Step Verification (2FA) enabled on your Xfinity account, double-check you’re using the correct current password; some setups may require an app-specific password depending on the provider/security configuration.

Important note about Calendar

IMAP syncs email only and does not sync a Comcast calendar into Outlook. For Comcast/Xfinity consumer mailboxes, calendar syncing to Outlook/iOS typically isn’t supported the same way it is with Outlook.com, Google, iCloud, or Exchange. The practical options are to use a separate calendar provider (Outlook.com/Google/iCloud) for syncing, or handle invites via .ics files/forwarding.

If you reply with the exact last line of the error Outlook shows (in quotes), I can point you to the most likely fix.

Please let me know if this proves useful to you, or if you would like further assistance.

I'm looking forward to your reply.

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Answer 2

To get a Comcast (IMAP) email working again in Outlook for iPhone after reinstalling, add it back as an IMAP account and verify the server settings from Comcast.

Use these steps in Outlook for iOS:

1. Open Outlook for iOS.
2. Go to Settings (tap the avatar in the top left, then the gear icon in the bottom left).
3. Under Mail Accounts, tap Add Mail Account > Add Email Account.
4. Enter the Comcast email address and tap Sign In.
5. If Outlook does not correctly detect the account type, tap Not a ___ account in the top-right, then choose IMAP.
6. Enter the Comcast username and password and tap Sign In.
7. If the connection fails, tap Advanced Settings and enter the Comcast incoming and outgoing mail server information, username, and password, then tap Sign In.
   • To enter a custom port, add a colon and port number after the hostname (for example: imap.server.com:993).
8. If it still fails, contact Comcast support or the email administrator to confirm the correct IMAP and SMTP server names, ports, and security settings, then re-enter them in Advanced Settings.

Note: When using IMAP in Outlook for iOS, only email syncs. Calendar and contacts from that Comcast account will not sync; calendar in Outlook for iPhone requires an account type that supports calendar sync (such as Exchange/Outlook.com or Microsoft 365).

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References:

• How do I set up an IMAP account?
• Set up the Outlook app for iOS
• Can't sync calendar and contacts with my phone or tablet