I suddenly had an issue that has stopped me sending Emails (Outlook 2016) & constantly getting a pop up box which wants me to keep entering the following information -
'Enter your user name and password for the following server' (smtp.virginmedia,com)
I have contacted VM a few times over the last few days & they have checked that all of my accounts settings are correct, which they seem to be. I've also changed & updated my password numerous times in the hope this will fix the issue, but sadly with no luck.
I am convinced that this is definitely an issue with my WIFI because anyone else who tries to send emails whilst connected solely to my WIFI (using various different devices) are also experiencing the same issue as me & are also unable to send emails too.
However I am still able to receive incoming emails & also still have access to the internet, this seems to only be affecting me sending emails.
Any help or advice would be very much appreciated please.
You can check your listing yourself but there is no point requesting removal until you have found and deleted the spambot. https://www.spamhaus.org/query and type in your external IP you can gets this my typing "whats my ip" into google.
If you are running Hola VPN Free, then note But Hola Free VPN is anything but a VPN.
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VM320 indicates that there have been too many authentication attempts received in the last hour on your account.
The last time we saw this for some reason a device on the user's network was authenticating correctly with the server repeatedly without sending emails. This caused failures when sending from Outlook with precisely the same error code.
It was an IP camera device IIRC.
Given the code, I don't think the password change is relevant.
Looks like something on your network is sending/trying to send email communications and tripping the VM sending limits. You'll need to find what device is doing this and prevent it from doing so.
(Credit to ravenstar68 for this information.)
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