On 08.08.2021 21:53, Pete Long wrote:
Hi Reio,

Yes it's set with SSL (as Apple's iPhone mail app shows) on port 587. The 
authentication method is 'password'.

Do you see from smtpd logs that a connection is made and credentials fail?



Pete.



On 8 Aug 2021, at 19:46, Reio Remma <r...@mrstuudio.ee> wrote:

Hello!

Is your phone configured to submit to port 587?

Good luck
Reio


On 08.08.2021 20:56, Pete Long wrote:
Oops, I hope this is now visible.


Pete.


Begin forwarded message:

From: Pete Long <p...@valar.uk.net>
Subject: Submission Creds only Accepted on LAN?
Date: 8 August 2021 at 18:46:49 BST
To: misc+h...@opensmtpd.org

Hi,

I've just begun using OpenSMTP and find it fascinating with its speed and 
simplicity.

All is working fine except for one issue I can't fix. If I send email from my 
computer to the OpenSMTP server on my LAN, the creds used for submission work 
fine.

However if I try the same thing from my phone over a 3G connection, the same 
creds fail. The username/password used is the same as my user account on the 
VMWare virtual server with FreeBSD 13.0 installed on which OpenSMTP is running 
ie. no seperate maps.

Here's the line in smtpd.conf that I think is relevant:

listen on em0 port submission filter { rspamd } tls-require pki mydomain.tld 
auth hostname mydomain.tld mask-src

All outbound mail passes through a smart host as per this line:

action "relay" relay host smtp+tls://myauthla...@smarthost.provider.tld:25 auth 
<secrets> helo mydomain.tld

By the way, I've tried removing the 'filter { rspamd }' section but the same 
result occurs: non-LAN submission attempts 'permfail' with the same creds that 
work on a LAN connection.

Can anyone help me here?

Let me know if you require more information.


Thanks.


Pete.


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