SPF

[licquorice]

Are you actually a BT broadband customer?

[bluejak]

I do not understand “send via your domain provider’s email server”. As a very long term customer of BT I am quite happy with them and I have no idea what other problems might arrive if I switch for no obvious gain.

[bluejak]

Yes, BT provide email, broadband, landline.

[licquorice]

It's quite simple, instead of sending your domain name email via the BT email servers, simply send them via your domain host's email servers. Otherwise just add the the SPF information to your domain DNS record as posted previously.

[bluejak]

I think th etime has come to give up. What is simple to you completely incomprehensibloe to someone like myself with no technical knowledge whatever. I have no idea what a DNS record is or how to add anything to it. I have no idea whow to send BT email except via BT.

I think gmail people will just have accept some of my emails will not reach them.

[licquorice]

You just need to ask your domain provider to add the SPF details

[bluejak]

As previously explained the domain provider says it is not for them but for the email people.

However, BT have now passed it to their technical people.

[licquorice]

If the problem is the lack of SPF details, it is nothing to do with BT, it is your host that should be implementing the details I posted regardless of what they say.

Who is your domain provider?

Did you actually read the links I posted explaining how SPF works and it's purpose?

[licquorice]

As asked previously, what client (app) are you using to send the emails and how exactly do you have it configured? Are you authenticating the mails with a btinternet email address?

[Les-Gibson]

This article may help your understanding

Prevent mail to Gmail users from being blocked or sent to spam - Gmail Help (google.com)