Roadrunner Email Not Sending? Fix Outgoing Mail Fast
Receiving fine, sending nothing? The outgoing server is almost certainly the problem, and the fix is quick.
Quick answer: If Roadrunner email is not sending, set the outgoing server to mobile.charter.net, port 587, SSL/TLS on, with authentication required. Port 25 or a missing outgoing password is the usual cause.
Fix it
- Open the outgoing (SMTP) settings for the account.
- Server mobile.charter.net, port 587.
- SSL/TLS on, authentication set to your full address and password.
- Save and send yourself a test.
Two things cause nearly all of these. The port quietly reset to 25, which networks block, or the outgoing server has no login attached. Set the port to 587 and make sure it authenticates with your own address and password. That is the fix in the overwhelming majority of cases I see.
No luck on 587? Try 465 with SSL. Some apps are picky and prefer it.
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
What is the most common reason it will not send?
The outgoing port reset to 25, or the SMTP server lost its login. Set 587 with authentication.
Should outgoing use SSL?
Yes. SSL/TLS on, port 587, authentication required.
Can antivirus block outgoing mail?
Sometimes. Some security suites police the outgoing port. If 587 with SSL and authentication is correct and mail still will not leave, check whether your antivirus is scanning email.
Work through it in order. Port first. Then SSL. Then the login. Nine times out of ten the fix sits in those three, and mail leaves your outbox a minute later.