Forum Discussion

jezport's avatar
jezport
Dialled in
14 days ago

SMTP ports possibly blocked?

Today my emails stopped going out on my wifi or wired network via my virgin broadband. I've tried all SMTP ports in my settings but have had no joy.

It's definitely my broadband connection on virgin that has the issue as I can send emails fine on my EE phone when on EE but not on wifi. Please help! I called virgin but they didn't really understand, they say their only option is to send an engineer out!

  • Can anyone help with this. I've double checked all I can at my end but it looks like all the SMTP ports won't let me receive mail. When connected at home I can't receive mail, switch toy 5g hotspot and all works fine.

    • 用心棒's avatar
      用心棒
      Very Insightful Person

      Consider trying the following 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

       

      • Robert_P's avatar
        Robert_P
        Forum Team

        Hello jezport

        Sorry to hear of the email issues experienced via your home network, we appreciate you raising this with us via the forums.

        Have you been able to follow the advice and steps offered by 用心棒 in their post? If you have and can post the results 👍

    • Client62's avatar
      Client62
      Alessandro Volta

      It would help to know : 

      1) Which SMTP server is involved 
      2) which SMTP port is being used
      3) with which encryption,
      4) and what are the error message
      5) has this ever worked over a VM home internet  


  • Deez's avatar
    Deez
    On our wavelength

    I'm having a similar issue, my desktop clients suddenly won't accept my passwords.

    I log on fine for the web browser version but using the above test i get

     

  • Adduxi's avatar
    Adduxi
    Very Insightful Person

    Have you tried bypassing the VM DNS Servers?  Manually set the DNS server on a device to  Google's Public DNS servers, i.e. 8.8.8.8  and  8.8.4.4

    It's maybe the VM Websafe and Childsafe filters are causing issues.