SPF

[bluejak]

I have a problem over the last few weeks. I have two domain names and post from them using BTInternet.  This has worked for many years. 

 

Now emails are failing specifically to gmail accounts and it says I need verification. Apparently this means I need to attach an SPF to my BTInternet account. (I checked whether I needed it with the domain name providers but the say no, it must be with the email provider).

So I have to attach an SPF to my account   xxxxxxxxxxxxxxxxxxxx@btinternet.com

What is an SPF?

What should it look like?

How do I attach it?

[JonUK]

You need to remove the email address in your post for security reasons.

JonUK

UPDATE

JohnC2 has edited as I posted

Many Thanks

[licquorice]

If you are sending a domain email address using BT SMTP server, you need to authenticate using your btinternet address. You can't configure SPF credentials on the BT server.

Which client are you using?

[licquorice]

Try adding

v=spf1 mx a ip4:213.120.69.0/24 a:btinternet.com  ~all

To your domain host DNS record.

Have a look at https://flowmailer.com/en/resource/dissecting-the-spf-record

[bluejak]

Having spoken to BT help they say they are unable to add an SPF record and do not really know what this means.

[licquorice]

It is not BT that need to add the SPF record, it is your domain provider.

[jac_95]

@bluejak,

You need to add the SPF record to your own DSN records for the domain containing the MX servers and third party mail services you use to send mail on behalf of your domain - see https://dmarcian.com/create-spf-record/

Don't use BT Consumers mx records to send emails for your own domain, I'm surprised that's working as I thought they blocked it.

[bluejak]

The domain provider made it quite clear that it was BT. BT did not know what I was talking about.

[bluejak]

This is great for the technically minded. I do not know what the following are, what they mean, or what to do about them:

DSN records
MX servers
Third party mail servers
BT Consmers max records

[licquorice]

The domain provider doesn't know what they are talking about.

They need to add the details I provided to your DNS record

Alternatively, why not send via your domain provider's email server if they offer that facility.