Are you using BT ? When you send an email it reaches the server and the server has filters to try and detect potential spam. Your email is triggering something in that spam filter.

Is it a new email you create or are trying to forward an email to someone ?

In order to understand what is goin gon we need to know more about what you are sending. What does the email contain ? What is in the Subject? Do you put any links or images copied from a webpage into the email ? Do you have a signature that contains more than text eg: it has an image or link in it?

This link offers info on how to contact postmaster if it is BT: https://community.bt.com/t5/Email/Email-error-message/td-p/2120476

Hello Toad Hall, thank you for your help - much appreciated.

Am I using BT? I don't know what you mean - my email address has @btinternet.com at the end, and I'm using Thunderbird.

Even the simplest message wont go through - such as Subject = Test, Content = xxxx (or a few brief words) - no attachments, no signature, nothing.

I've tried repeatedly to send the simplest of messages, and each has been rejected.

Your further assistance would be appreciated.

Thanks again.

Ps It's something about my elderly laptop that it doesn't like.

I can prepare a message on my laptop, put in my drafts, and can send it successfully from an ipad - but that same message is rejected when sent from the laptop.

Any and all ideas (apart from "ditch the laptop") welcome.

Thanks again.

Sorry, that bit about the laptop / ipad isn't true - sending messages from the laptop gets the response about spam etc and the message is rejected - sending the same message from our ipad doesn't generate a message from the server, and the message is put in my Sent box, but the message doesn't really get sent.

All very odd - bit like me really!!

Can you help?

Thanks.

re :Am I using BT? I don't know what you mean - my email address has @btinternet.com

You have an account with BT (British Telecom) which supplies your internet connection. BT offer an email address as part of the package.

That means it is likely you have a BT hub. You need to know the current IP address. In windows search type 'Settings' Select 'Settings' Select 'Network & Internet' If you connect via a ethernet cable - click on 'Ethernet' If you connect wirelessly via WIFI - click on 'WIFI'

At the top it will say the name and 'connected' - click on that name. Scroll down to the IP settings and under 'Properties' you will find: IPv4 address: it will have some number Make a note of what it says.

Let's see if we can force a new IP connection by resetting the hub. Usually, there is a button or small hole used for resetting and it's usually located on the back of the hub, If you are not sure about how to do this, click on the link below as it offers good information and may help:

• https://www.bt.com/help/broadband/how-do-i-reset-my-bt-hub-to-its-factory-settings

Switch off all devices that connect to internet. Then reset the hub. Once the hub is up and running - start up computer and check to see what IP address is now being used using the same process as I mentioned above.

Then start Thunderbird and test sending an email to me. My email address is : mail at anje dot co dot uk that email address is written phonetically to avoid spam bots, so 'at' means '@' sign. Enter this in Subject so I can watch out for email: Tbird

Hi regdunn697

This is to let you know that I received your email. It seems you are now up and running again.