Roadrunner Email SMTP Settings for Sending Mail
Receiving fine but nothing will send? Nine times out of ten it is the outgoing server. Let us fix it.
Quick answer: The Roadrunner email SMTP settings are outgoing server mobile.charter.net, port 587, SSL/TLS on, with authentication required. Use your full email address and password to authenticate.
The two mistakes I see most
First, the port. A lot of clients default to port 25, which is the old unauthenticated port, and providers block it. Mail just sits in the outbox. Change it to 587 and turn SSL on.
Second, authentication. Some apps assume the outgoing server needs no login. Roadrunner does. You have to tell it to use the same username and password as incoming. I once spent twenty minutes on a relative’s laptop before spotting that one unchecked box. Twenty minutes. For a checkbox.
Quick send test
- Open the outgoing (SMTP) settings for the account.
- Set server to mobile.charter.net, port 587, SSL/TLS on.
- Turn on authentication with your full address and password.
- Save and email yourself. If it lands, you are done.
Still stuck after that? Try port 465 with SSL, which some apps prefer. If neither works, the password itself may be out of date.
Remember that Spectrum owns this service now, so the real controls live on their site. Start from the Spectrum sign-in or their mail setup page when you need official help.
Questions people ask
Should I use port 587 or 465 for Roadrunner SMTP?
Start with 587 and SSL on. If an app refuses it, try 465. Both are authenticated ports, unlike the old port 25.
Why does Roadrunner SMTP need a login?
To prove the mail is really from you. Without that outgoing login, messages sit in the outbox and never leave.
My outgoing mail worked yesterday and failed today. Why?
Something reset the outgoing server. It happens after app updates. Open the SMTP settings and confirm mobile.charter.net, port 587, SSL on, and authentication with your full address. That restores it.