I use BT's email service. Apparently when I send emails the recipient receives a lot of code instructions before the body of the email. For example it will have the font style used and colour of font. It sometimes appears at the start of paragaphs where there are changes to fonts.
an example is :
mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-GB"> Dear Philip,
mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-GB">
Has anyone an idea how to stop this? I can't send important emails
There's your problem, it is a known problem that BT are working on. Select Plain text in the Format option of the Compose window.
Of course. You can use both methods at the same time if you wish. Make sure you configure the account as IMAP