hi Ian, unfortunately some of the email providers block our emails because apparently we are an advertiser that has not decided to sign up, i.e. pay for, their advertising partnership programme or provided an unsubscribe option.
the only suggestion I can make is to add the domain homeworkshop.org.uk and homeworkshop.club your white list, safe senders, approved senders or whatever else your email provider decides to call the white list. Failing that I suggest getting an email address on google.com and adding them to your safe senders list.
You can use a username or email address and password which can be a combination of uppercase and lowercase numerals or symbols and are case-sensitive and for some reason does not recognise O as 0 or vice versa also knows the difference between capital i anda lowercase L.