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Unable to submit email: <rx> 525 5.7.13 Authentication Denied (VM305)

In the last few weeks I have been unable to submit any emails, from any device, running any progam from my Virgin Email address, whilst connected to my home WIFI.

Mobile devices work OK, if they connect via 4g. My laptop also works OK if I tether it to my mobile phone.

I am getting the following error from Outlook 2016

 

<rx> 250-know-smtprelay-1-imp hello [82.45.220.133], pleased to meet you
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 250-HELP
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 250-AUTH LOGIN PLAIN
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 250-SIZE 52000000
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 250-ENHANCEDSTATUSCODES
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 250-PIPELINING
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 250-8BITMIME
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 250 OK
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): Authorizing to server
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): [tx] AUTH LOGIN
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 334 VXNlcm5hbWU6
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): [tx] xxxxxxxxxxxxxxxxxx
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): <rx> 334 UGFzc3dvcmQ6
2019.11.11 19:21:10 SMTP (smtp.virginmedia.com): [tx] xxxxxxxxxxxxxx
2019.11.11 19:21:15 SMTP (smtp.virginmedia.com): <rx> 525 5.7.13 Authentication Denied (VM305)
2019.11.11 19:21:15 SMTP (smtp.virginmedia.com): Retrying authorization
2019.11.11 19:21:17 SMTP (smtp.virginmedia.com): Disconnected from host
2019.11.11 19:21:17 SMTP (smtp.virginmedia.com): End execution

Other posts on this subject suspect my IP address if blacklisted. I have check and all is OK.

Can anyone help? I have had a call open with the VM network team for a week, but have not heard anything back.

Many thanks in advance

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Re: Unable to submit email: <rx> 525 5.7.13 Authentication Denied (VM305)

The VM305 error message is unambiguous. It means that VM refuse to relay (send) your e-mail because they have noticed that your home IP is on Spamhaus's SBLCSS List - IP detected as sending low level (snowshoe) spam. It can mean nothing else. Until you clear the infection then you will remain unable to send e-mail.

Read this:

https://community.virginmedia.com/t5/Security-matters/Searching-for-Spambots-on-your-network/td-p/40...

and check here:

https://www.spamhaus.org/lookup/

and remember to check your external IP not local ones. Get your IP by typing IP into any internet browser search bar.


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Re: Unable to submit email: <rx> 525 5.7.13 Authentication Denied (VM305)

Thanks for the info. My IP did indead show up as blocked.

Wireshark shows no activity in my house on port 465.

I have requested a unblock, and have updated my VM email password.

Just waiting now to see what happens.

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Re: Unable to submit email: <rx> 525 5.7.13 Authentication Denied (VM305)

OK, all seems to be working again.
Why did I spend 1h20 on the phone to VM helpline last week and they knew nothing about this!!!!!!!!!!!
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Re: Unable to submit email: <rx> 525 5.7.13 Authentication Denied (VM305)


@RogBev wrote:

Thanks for the info. My IP did indead show up as blocked.

Unsurprisingly

Wireshark shows no activity in my house on port 465.

Unless you're sending a mail I wouldn't expect it to.  You should be checking port 25 instead.  This is because your IP is attemting to deliver mail to inbound mail exchanges directly on port 25.

I have requested a unblock, and have updated my VM email password.

The thing is, until you identify the source of the traffic setting off the CSS blacklisting, all that will happen is that you'll be listed again.

Just waiting now to see what happens.


Please note that if you are running Hola Free VPN on any device on your network, you should remove it.  A number of users have reported spam traffic coming via that route and I did my own testing and confirmed this myself.

https://community.virginmedia.com/t5/Security-matters/Hola-Get-rid-of-it/td-p/4099103

Tim

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Re: Unable to submit email: <rx> 525 5.7.13 Authentication Denied (VM305)


@RogBev wrote:
OK, all seems to be working again.
Why did I spend 1h20 on the phone to VM helpline last week and they knew nothing about this!!!!!!!!!!!

Because the phone team are great provided you have a standard problem.  Sadly they're technically challenged otherwise..

The new Forum Team are coming along nicely but one of the main benefits of the Forum is that there are people who volunteer their time who have a strong IT background and give their time to help users fox their issues.  The Forum Team then picks up issues that need escalating.

Tim

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