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Re: PlusNet outsourcing

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In message <y55HRnCuW+TpFwiq@brattleho.plus.com>, Ian Jackson 
<ianREMOVETHISjackson@g3ohx.co.uk> writes
>In message <nJjC9RCFO+TpFwjl@brattleho.plus.com>, Ian Jackson 
><ianREMOVETHISjackson@g3ohx.co.uk> writes
>>In message <mr7rliFsomgU1@mid.individual.net>, John Hall 
>><john@jhall.co.uk> writes
>>>On 26/12/2025 11:51, J. P. Gilliver wrote:
>>>> On 2025/12/26 10:15:24, John Hall wrote:
>>>>> On 26/12/2025 02:40, J. P. Gilliver wrote:
>>>>>> I have noticed, since the second email, if I leave the laptop unattended
>>>>>> for a while (Thunderbird left open [I use POP if that's relevant]), I
>>>>>> have one or more "unable to connect to" popup windows when I come back.
>>>>>> So far, emails have continued to come and go, but I'm not confident for
>>>>>> the future.
>>>>>
>>>>> It might be worth checking that your Thunderbird is set to use the port
>>>>> numbers that Plusnet/Greenly now recommend for POP3 and SMTP.
>>>>  I'm using 110 for POP and 25 for SMTP.
>>>
>>>That document I linked to says 995 for POP and that 587 is 
>>>recommended for SMTP although 25 can also be used:
>>>
>>>https://www.plus.net/help/email-guides/how-to-set-up-plusnet-email/
>>
>>This seems to be definitive. Has anyone implemented it?
>>https://tinyurl.com/3uyvyzm8
>>[The original is massive!]
>
>Sorry, On this XP PC, that link doesn't simply the specifically 
>relevant bit that my W10 PC shows.

Ah - it looks that the browser needs to be in the AI Mode, which you 
don't get in the older version of Firefox (required for XP on this PC). 
This is what it says. [I've Tidied it up a bit. I hope I haven't 
mis-edited any bits.]
....................................................

Plusnet Email Stunnel Configuration

To use
Stunnel as a secure proxy for Plusnet email (allowing legacy email 
clients to connect to Plusnet's TLS-secured servers), you must configure 
your stunnel.conf file to map local ports to Plusnet's remote servers.
As of 2025, Plusnet is migrating its email services to a new platform 
called Greenby, but standard server addresses remain functional for many 
users.
Plusnet Stunnel Configuration Example
Add the following blocks to your stunnel.conf file. This configuration 
assumes you want your email client to connect to localhost (127.0.0.1) 
on standard non-secure ports.
ini
[plusnet-pop3s]
client = yes
accept = 127.0.0.1:110
connect = mail.plus.net:995
verifyChain = yes

[plusnet-imaps]
client = yes
accept = 127.0.0.1:143
connect = imap.plus.net:993
verifyChain = yes

[plusnet-smtps]
client = yes
accept = 127.0.0.1:25
connect = relay.plus.net:587
protocol = smtp

Use code with caution.
Required Plusnet Server Details
When setting up the "connect" lines in Stunnel, use these official 2025 
settings:

Incoming (IMAP): imap.plus.net on port 993 (SSL/TLS).
Incoming (POP3): mail.plus.net on port 995 (SSL/TLS).
Outgoing (SMTP): relay.plus.net on port 587 (Requires STARTTLS).
Note: In Stunnel, for port 587, you must include protocol = smtp to 
handle the STARTTLS negotiation.
Email Client Settings
Once Stunnel is running, configure your legacy email client with these 
"local" settings:
Incoming Server: 127.0.0.1 (or localhost)
Incoming Port: 110 (for POP3) or 143 (for IMAP)
Outgoing Server: 127.0.0.1
Outgoing Port: 25
Security/Encryption: Set to None or Plaintext (since Stunnel handles the 
encryption between your PC and Plusnet).
Authentication:
Username: Your full Plusnet email address (e.g., 
username@yourdomain.plus.com) or username+mailboxname for secondary 
mailboxes.
Password: Your standard Plusnet account password.
Troubleshooting Tips
Certificates: If you encounter certificate errors, ensure you are using 
relay.plus.net instead of smtp.plus.net, as the latter may not match the 
security certificate.
SMTP Authentication: Plusnet requires SMTP authentication even when 
connected via Stunnel if you are sending from a non-Plusnet internet 
connection.
Would you like help generating a specific stunnel.conf file for a 
different operating system, such as Linux or macOS?
AI responses may include mistakes. Learn more

Email settings - Plusnet Community
After a prolonged "discussion" with the Complaints Dept. at Plusnet the 
following settings have been advised: 2. Edit the SMTP Ser...

Plusnet Community
Trouble setting up my plusnet emails accounts
In summary the settings should be... * IMAP: imap.plus.net port 993 
encryption SSL/TLS. * POP3: mail.plus.net port 995 encryption ...

Plusnet Community

email set up - Plusnet Community
Re: email set up * SMTP server is relay. not smtp. as guessed by 
Outlook, which will work, but is not in the security certificate.

Plusnet Community
-- 
Ian
Aims and ambitions are neither attainments nor achievements

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Thread

Help required with POP3 stunnel John <this.address.is.rejected@limax.co.uk> - 2025-12-10 18:23 +0000
  Re: Help required with POP3 stunnel John Hall <john@jhall.co.uk> - 2025-12-10 20:14 +0000
    Re: Help required with POP3 stunnel John <this.address.is.rejected@limax.co.uk> - 2025-12-11 14:56 +0000
      Re: Help required with POP3 stunnel John Hall <john@jhall.co.uk> - 2025-12-11 16:42 +0000
        Re: Help required with POP3 stunnel John <this.address.is.rejected@limax.co.uk> - 2025-12-14 10:17 +0000
          Re: Help required with POP3 stunnel John Hall <john@jhall.co.uk> - 2025-12-14 18:52 +0000
            Re: Help required with POP3 stunnel John <this.address.is.rejected@limax.co.uk> - 2025-12-15 16:39 +0000
              Re: Help required with POP3 stunnel John Hall <john@jhall.co.uk> - 2025-12-15 16:56 +0000
                Re: Help required with POP3 stunnel "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-15 21:39 +0000
                Re: Help required with POP3 stunnel "David B." <BD@hotmail.co.uk> - 2025-12-15 23:09 +0000
                Re: Help required with POP3 stunnel Ian Jackson <ianREMOVETHISjackson@g3ohx.co.uk> - 2025-12-20 22:53 +0000
                Re: Help required with POP3 stunnel "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-21 03:39 +0000
                Re: Help required with POP3 stunnel Ian Jackson <ianREMOVETHISjackson@g3ohx.co.uk> - 2025-12-23 17:09 +0000
                Re: Help required with POP3 stunnel John Hall <john@jhall.co.uk> - 2025-12-23 18:32 +0000
                Re: Help required with POP3 stunnel "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-24 06:09 +0000
                Re: Help required with POP3 stunnel Ian Jackson <ianREMOVETHISjackson@g3ohx.co.uk> - 2025-12-24 14:01 +0000
                Re: Help required with POP3 stunnel "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-24 15:36 +0000
                Re: Help required with POP3 stunnel Ian Jackson <ianREMOVETHISjackson@g3ohx.co.uk> - 2025-12-24 21:31 +0000
                Re: Help required with POP3 stunnel John Hall <john@jhall.co.uk> - 2025-12-24 21:53 +0000
                Re: Help required with POP3 stunnel "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-25 11:50 +0000
                Re: Help required with POP3 stunnel John Hall <john@jhall.co.uk> - 2025-12-25 20:19 +0000
                PlusNet outsourcing (was: Re: Help required with POP3 stunnel) "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-26 02:40 +0000
                Re: PlusNet outsourcing John Hall <john@jhall.co.uk> - 2025-12-26 10:15 +0000
                Re: PlusNet outsourcing "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-26 11:51 +0000
                Re: PlusNet outsourcing John Hall <john@jhall.co.uk> - 2025-12-26 16:32 +0000
                Re: PlusNet outsourcing Ian Jackson <ianREMOVETHISjackson@g3ohx.co.uk> - 2025-12-27 13:47 +0000
                Re: PlusNet outsourcing Ian Jackson <ianREMOVETHISjackson@g3ohx.co.uk> - 2025-12-27 13:57 +0000
                Re: PlusNet outsourcing Ian Jackson <ianREMOVETHISjackson@g3ohx.co.uk> - 2025-12-27 16:14 +0000
                Re: PlusNet outsourcing "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-12-27 14:40 +0000

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