SPF record 2022 update please

[#1]

similar to this older thread....

https://community.plus.net/t5/Email/SPF-record/m-p/1741925

1: I own a domain

2: I would like to be able to send mail using the plusnet mail server (as a backup to the real domain host which is UK2)

3: Various receivers mark this as spam, because the SPF does not match the mail relays used by Plusnet (fair enough)

4: So I need to create an extra SPF record for my domain

What is the latest record, and how do I add it ?

Currently I have in the DNS text records for mydomain.co.uk this :

v=spf1 include:_spf.hostedemail.com ~all

Looking at a spam tagged email via plusnet SMTP it has:

ARC-Authentication-Results: i=1;
	imf22.hostedemail.com;
	dkim=none;
	dmarc=fail reason="No valid SPF, No valid DKIM" header.from=mydomain.co.uk (policy=none);
	spf=softfail (imf22.hostedemail.com: 84.93.230.227 is neither permitted nor denied by domain of mailbox@mydomain.co.uk)

Now I could delete the v=spf text on the DNS (unwise ?) or what would I add to make sure any of the servers plusnet might have are deemed OK (I assume that is where imf22.hostedemail.com comes in ?)

thanks for thoughts

Bill

[#2]

You need to add 

include:_spf-internal.plus.net include:_spf-internal2.plus.net

to your existing spf record  ( you can only have one )

[#3]

OK thanks, have done and will see what the headers look like in a day or so