My phone says "unable to connect to server" but webmail works
Remove the account from the phone and add it again as IMAP, using the settings on Mediacom's settings page.
Mediacom Email: Settings, Sign-In & Fixes
Mediacom runs its own @mediacombb.net mailboxes. We could not confirm the server settings on Mediacom's own pages, so check them on Mediacom's settings page before you type them into an app.
Covers @mediacombb.net. Run by Mediacom Communications. Checked against Mediacom's own help pages, November 2026.
Mediacom email server settings
Mediacom doesn't publish settings we could confirm, so we don't list any here (a wrong port causes more trouble than none). Use the settings on Mediacom's own settings page.
Email still not working?
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Common Mediacom email problems
Email stopped working after an iPhone or Mac update
Type your password in again and check that SSL is still turned on. If that does not help, remove and re-add the account.
I can't reset my Mediacom email password
Mediacom asks for a verification code during password resets. Have the phone or email address on your account ready.
Problems that look the same on every provider
Can't sign in, or the password stopped working
- Sign in on the provider's own webmail page first. If that works, the problem is your mail app, not the account.
- If webmail rejects the password, use the provider's "Forgot password" page. Never use a reset link from an email you did not ask for.
- Many providers now need a separate app password (or their own sign-in screen) for Outlook, Apple Mail and phone apps. Your normal password will not work there.
Not receiving emails
- Check Spam, Junk and any filters or "blocked senders" in webmail.
- Check whether the mailbox is full; most providers stop accepting mail at the storage limit.
- If your app shows nothing new but webmail does, remove and re-add the account in the app using IMAP.
Can't send, or emails are stuck in the Outbox
- Check the outgoing (SMTP) server, port and security on this page against your app; old guides often list ports that no longer work.
- Turn on "My outgoing server requires authentication" and use the same username and password as incoming.
- Large attachments are a common cause. Remove the attachment and try again.
Contacts are getting spam from my address
- Change the password from webmail, then sign out of all other sessions if the provider offers it.
- Check forwarding rules, filters and the reply-to address in settings; attackers often add a hidden forward.
- Turn on two-step verification, and update the password anywhere else you used the same one.
Setting it up on a new phone or computer
- Use IMAP rather than POP so mail stays in sync across your phone, computer and webmail.
- Enter your full email address as the username unless the provider says otherwise.
- If the app offers the provider by name (Yahoo, Google, Outlook), choose that instead of "Other".
Sources: Mediacom community: third-party email settings · Mediacom community: Mediacom ID and email password resets. Providers change settings from time to time; their own page is the final word.
Tried the steps and still stuck?
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