For a few days now I've been unable to send emails using Outlook App on my PC or my Android phones email, however when i look into my https://mail2.virginmedia.com account online I can send and receive emails fine. Incoming email is also fine.
First of all. Never post personal information on a public forum. Protect and don't compromise your privacy.
Second, you can't have looked very hard. This board is riddled with this issue. Day after day after day. You see what what I mean when you read what I have to say.
Third. You've done some good initial detective work. But now it is time for more. Follow these instructions carefully to help us confirm the superficial diagnosis of a spambot infection. If VM are told by an outside independent spam detection authority that they have seen spam coming from your IP address (the way that your Hub identifies itself to the on-line world) VM will refuse to send your mail. Web mail isn't affected. The spam sending is invisible to you. Your e-mail program is NOT implicated.
This step works if you are running Windows 10. If you are then open a command prompt:
username is your full email address and password is your password. I have tested this string and is does work, or at least it should. Don't agonise if it doesn't and move to the next step. So if it works as designed you should see a VM3xx code. Tell us what it is. Just that. Anything else will compromise your privacy.
It is true that CSS listings come and go. This is because spambots go quiet and so Spamhaus will remove the listing if they detect no malicious activity from the IP address in approx 24 hour periods. It doesn't mean that the issue has gone away. The malware is still there and needs tracking down and dealing with. We've provided advice on how to do this. And if you don't get rid of it the whole miserable cycle will restart.
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks
The issue continues unfortunately, im still unable to send emails. However i found this only applies to when im on the home wifi network. When im on the mobile network this isn't an issue and the emails send.
I've run antivirius checks on all computers and mobiles. I found on partners phone that she had a USB virus/bug which i removed.
Even though the CSS listings expire, you need to be aware that a device on your network is most likely compromised. You'll need to check the malware of all of your connected devices including any loT/smart home devices you have.
It's most likely malware on one of the devices sending spam, this is why there is the CSS listing on your IP address.