posted by Henry2 .
Yes, you are right. Thank you very much for giving me advice, too!
By the way, I need to include this sentence in an email. Could you please check it?
As promised, I'm sending you both the email address and the password of my first class so that your students can get in touch with mine.
2) About twenty students will take part in the email partnership. I hope you have recovered from your illness and can enjoy your weekend.
Both sentences are fine as they are.