Server Response: 421 csmtp5.tb.ukmail.iss.as9413.net cmsmtp Virgin Media has blocked your connecting IP x

[ei3014]

Hi,

I can see this error has been reported before - and it seems to be related to a "SPAM TRAP" which needs to be unblocked by virgin media.

I hope you can help me with this. I have 4 Thunderbird clients and 4 outlook clients - all stopped working at the same time

Hoping you can help me please

[coenoby · Accepted solution]

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@ei3014 wrote:
I can see this error has been reported before................

Hoping you can help me please

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As you have probably seen in those other threads, your best first step (if you have not done so already) is to complete a Net Report to Virgin Media as detailed here:  https://community.virginmedia.com/t5/Email/UNABLE-TO-SEND-EMAILS-FROM-NTLWORLD-ACCOUNT-ON-PC-AND-MOB... 

Note though where that post refers to  pasting "the error message shown in the curl command" simply paste the full error message you are seeing from your email client as per the title of this thread including the phrase  "Too many bad emails have been sent." if you are seeing that.

Coenoby

[Matthew_ML]

Hey ei3014, thank you for reaching out and I am sorry to hear this.

Did any of the advice above help at all?

I have just tried this link on a few devices on WIFI and over mobile data and they managed to work for me.

Please let us know. Thanks 

[ei3014]

Hi Matthew,

So reporting it to the web site mentioned in the Thunderbird error message seems to have done the trick  (https://netreport.virginmedia.com/netreport)

One upgrade I would propose is virgin not routing anything related to an email client to "Fix my gadget" - who want to charge £50 for a "fix".

Thanks for following up, that's appreciated.

Geoff

[Martin_N]

We're glad to hear this is all sorted for you now. 

^Martin