Email not downloading from external server

Initiale​ 

"I have checked with the hosting compnay and there is no problem at their end and have no block via spamhaus."

"however the IP is blocked in some way that is linked to the Virgin IP. .......... if I tether my pc to another provider they download from the server."

So faced with that have you checked whether your VM IP address is on a Spamhaus block list?   https://check.spamhaus.org/

If you have a domestic VM broadband package then it would be normal for your IP address to be on the Spamahaus PBL (Policy Block List). See here for an explanation of that https://www.spamhaus.org/blocklists/policy-blocklist/ 

However, if your VM IP address is on the SBL or XBL blocklists then that could be the problem.

However, I would concur with 用心棒​ and Graham_A​  that it's not a good idea using the VM servers to manage non VM email accounts.

Coenoby

Initiale​,

Your post mentioning VM304 has been rejected because it revealed personal information in the curl result posted. As a matter of urgency change the email account's password ASAP

The curl result indicated you are trying to connect to Virgin Media's SMTP server and not to your email service provider's SMTP server; as Graham_A already mentioned. Try connecting to your email service provider's SMTP server, for instance, if my provider is example.com then the curl command would be:

curl -v smtps://smtp.example.com -u me@example.com:rotavator-racecar-tenet-repaper

Hopefully the result will show why your Virgin Media IP Address is being blocked.

Consider trying the following troubleshooting but replacing the Virgin Media settings with those for your email service:

From a desktop or laptop device open a:

• Command Prompt in Windows
• otherwise terminal app

and enter the following where username:password is replaced with your email address and password, i.e. richard.branson@ virginmedia. com:rotavator-racecar-tenet-repaper:

curl -v smtps://smtp.virginmedia.com -u username:password

Do not post the resulting output here but instead review it for possible reported causes, i.e. VM error code; choosing to ignore this advice and posting the unredacted or incorrectly redacted output here will likely reveal your email address, password and / or public IP Address.

FYI if there is no issue then you should see the following output from the curl command:

⋮
> AUTH PLAIN  
> < 334  
> [Redacted]  
> < 235 2.7.0 SMTP350 Authentication successful for user \[Redacted\]  
> HELP  
> < 214-2.0.0 This is cmsmtp ESMTP service help  
> 214-2.0.0 This is cmsmtp ESMTP service help  
> < 214-2.0.0 To contact postmaster send email to [postmaster@virginmedia.com](mailto:postmaster@virginmedia.com).  
> 214-2.0.0 To contact postmaster send email to [postmaster@virginmedia.com](mailto:postmaster@virginmedia.com).  
> < 214-2.0.0 For local information send email to Postmaster at your site.  
> 214-2.0.0 For local information send email to Postmaster at your site.  
> < 214 2.0.0 end of HELP info  
> 214 2.0.0 end of HELP info

* Connection #0 to host smtp.virginmedia.com left intact 

Otherwise an unsuccessful result will look similar to the following:

⋮
> AUTH PLAIN  
> < 334  
> \[Redacted\]  
> < 525 5.7.13 Authentication Denied (VM320)

* Closing connection 0
* TLSv1.2 (OUT), TLS alert, close notify (256):  
    curl: (67) Login denied