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dom7654
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Cannot send email - error message: Blacklisted IP address

I have tried to send email from an IP camera using smtp port 25 and I think this has put me on a blacklist. Could I be removed as I've now reconfigured my cameras to use TLS 456 and have got past the authentication/ password wrong but am now getting:

Test  ...  Failed
The message is denied by the server. Maybe because of the anti-spam privacy of the server

 

I'm using my virginmedia.com email address and using 212.54.56.51 as the smtp.virginmedia.com outgoing mail client

Checking https://mxtoolbox.com/SuperTool.aspx?action=blacklist displays 2 entries for my IP address but these are from 2008 and I dont think relevant!

My IP is blacklisted at SORBS DUHL, UCEPROTECTL2

Thanks for your help.

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dom7654
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Re: Cannot send email - error message: Blacklisted IP address

I have read: https://community.virginmedia.com/t5/Email/What-to-do-if-your-IP-address-is-blacklisted/td-p/4122659

But believe because I initially tried to send the test email unauthenticated to port 25 you have blacklisted me and so you need to remove my IP Address from the blacklist so I can try again authenticated.

Thanks

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coenoby
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Re: Cannot send email - error message: Blacklisted IP address


@dom7654 wrote:

My IP is blacklisted at SORBS DUHL, UCEPROTECTL2


The fact that your IP address is listed on those blacklists should not prevent you from sending emails via the VM SMTP server.

The DUHL listing is normal and UCEProtect Level 2 does not really deal with individual IP addresses

Also, you would not have been blacklist by VM simply for failing to correctly authenticate an outgoing email.

However, one thing that catches my eye in your original post is "I've now reconfigured my cameras to use TLS 456"  Perhaps it was just a typo but the correct SMTP port for VM media email is 465 and VM always recommend specifying SSL or SSL/TLS.  I know TLS is a development of SSL, I am just saying those are the settings VM recommend rather than TLS 😉.

Coenoby

 

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dom7654
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Re: Cannot send email - error message: Blacklisted IP address

Sorry, yes i did have 465 it was a typo. I was getting authentication errors before getting all the settings right.

I read elsewhere on this forum that you need to get the VM team to unblock you if they think your network has sent spam which it would have looked like when i was initially trying to send outgoing email unauthenticated to port 25 which you could do with Talk Talk if you used the account holders email account.

Agree, i think the blacklists are not the cause but wanted to show i had checked and these were the only 2 entries.

How do you get VM to pick this up?

Thanks

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用心棒
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Message 5 of 14
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Re: Cannot send email - error message: Blacklisted IP address

FYI: whilst Virgin Media legacy domain SMTP servers accept connections over port 25 smtp.virginmedia.com does not, i.e. there is no deny list at play here, all connections over port 25 are declined.

dom7654
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Re: Cannot send email - error message: Blacklisted IP address

yes understood, I did this originally as it did work with Talk Talk as they do accept emails to legacy port 25 and I have recently moved from Talk Talk to VM.

I am now using TLS 456 with the correct credentials which is authenticating properly but I am now getting 

Test  ...  Failed
The message is denied by the server. Maybe because of the anti-spam privacy of the server

 

I believe as I sent email to VM outgoing mail server on port 25, VM themselves have put me on a deny list which they need to remove me from. So I need VM to look at this...

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coenoby
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Re: Cannot send email - error message: Blacklisted IP address


@dom7654 wrote:.

I am now using TLS 456 with the correct credentials which is authenticating properly but I am now getting 

 
I believe as I sent email to VM outgoing mail server on port 25, VM themselves have put me on a deny list which they need to remove me from. So I need VM to look at this...

VM will not have put you on a deny list simply because you tried to send email via port 25 using smtp.virginmedia.com, they would just have refused the connection.

In my opinion your first step should be to try changing the encryption type from 'TLS' to 'SSL/TLS' or 'SSL' because those are the settings VM recommend for port 465. Just do not use 'STARTTLS'.

Strictly speaking SMTP over SSL on port 465 is now deprecated but Virgin Media continue to use it.

Coenoby

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dom7654
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Message 8 of 14
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Re: Cannot send email - error message: Blacklisted IP address

No joy...

Submitting first to set and then running test

dom7654_0-1634910819733.pngdom7654_1-1634910838047.png

 

If I use the wrong port or bad user/ password I get

dom7654_2-1634910938289.png

 

 

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dom7654
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Re: Cannot send email - error message: Blacklisted IP address

Only option is None, TLS, STARTTLS 😞 Feels like this is just not going to work.

 

dom7654_0-1634911709747.png

 

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Message 10 of 14
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Re: Cannot send email - error message: Blacklisted IP address

Change the SMTP Server value from 212.54.56.51 to smtp.virginmedia.com