Windows Live Mail 2012 error code 530 0x800ccc78 --

Welcome to Seven Forums Roger. This is a send problem? Or send and receive? Give us as much info as possible, you try to do x, and receive so and so error, etc.

Try this, and see if it works. Boot to Safe Mode with Networking, and try there.

Safe Mode

If it works there, try a clean start and see if it works there

Troubleshoot Application Conflicts by Performing a Clean Startup

You could have a security program, or another 3rd party program blocking. That error, according to MS:

0x800CCC78 IXP_E_SMTP_REJECTED_SENDER Unknown sender (This error occurs because you have the incorrect e-mail address in the Reply-To field)

A Guy

Here is the Message i get after opening WLM2012---will try your suggestions A Guy---thanks for the help.:) OK--so i booted up in Safe Mode w/Networking & WLM 2012 wouldn't start & i got this message.
Have tried disabling the Mcaffee firewall & have set it to not monitor WLM at all---reopened Mail & still have the problem.
Used the "uninstall program" from control panel & removed entire package of Windows Live Essentials---even looked at Crogram files/windows live & in common files----32 bit Windows 7----those 2 files were gone in uninstall. Downloaded Windows Essentials 2012 & installed---WLM still won't work. Was the way i uninstalled the program the best way to completely clean old files out ?
Just a little more info---this is a dual boot laptop w/2 separate internal hard drives. The Vista drive has WLM2011 & works perfectly,while the other drive has Windows 7 home premium 32 bit & Wlm 2012---all server settings in both WLM programs are identical---ports are 25 & 110.Boxes are checked for "my server requires authentication".

Tried Boot in Safe Mode---- drive is not even 1/2 full.
Tried restore point 30 days ago---still no good.
Update--- just switch over to check my Email on the Vista drive --WLM 2011---now will only receive mail. Won't send text or pics.
How can that happen to 2 separate drives & 2 different programs ? HELP !
All windows updates are current on both drives & i use Mcaffee on both as well & updates are current on it as well.

Is it still Roadrunner, or has it changed? Can you sign in to the Roadrunner webmail directly using the same email address and password you use through WLM? The server seems to bejecting your email address, but doesn't really say why.

A Guy

I'm usually swamped during the week, and don't us WLM myself. I'm going to post for some assistance.

A Guy

Some IPS do not like windows live mail and block them. I know some ISP email that force you to use their website to get your email. Why? So they can serve you ads.

So that is possible.

Another more probable test is to uninstall windows live mail again, (using microsoct troubleshooter here which will wipe out everything) Fix problems that programs cannot be installed or uninstalled


then try thunderbirds email program. If theres works, use that.

TWC faqs: Frequently Asked Questions (FAQs)
POP Settings
Account Type: POP or POP3

Incoming Mail Server: mail.twc.com
Incoming Server - POP3 port: 110

Outgoing Mail Server (SMTP): mail.twc.com
Outgoing Server - SMTP port: 587

Inbound & Outbound User Name: Enter full email address, for example:

johndoe@[division].rr.com
johndoe@roadrunner.com
johndoe@twc

.com

Inbound & Outbound Password: Email Password (same as Web Mail)
SMTP Server Requires Authentication: Checked

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The FAQ doesn't state whether the ports should be SSL enabled.
I would NOT enable SSL for port 110 (incoming POP3)
I would first try the outbound STMP port 587 WITH SSL enabled