If you are looking to send out a marketing email then you need to take the time to think carefully about what you put in the email. You need to ensure that your email gives readers a reason to want to read it but also doesn’t contain spammy content that may cause it to get blocked by spam filters.
You need to take the time to think of a good subject heading. It needs to capture their attention and make them want to open it. If it just looks like any other marketing email then you may find that your open rate is poor. Emails that are addresses personally to the individual tend to have a better response rate than those that are generic. If you do have your contact sin an excel or .csv list then you can usually upload these into your email marketing software and pull through their name so that email that is sent out is personalised to that specific contact.
Emails that contain certain words or too many references of these words can also be marked as spam. They will often end up in peoples junk email and half of them will never even be seen. If you keep sending out emails that are classed as spam then you may find that your IP becomes blacklisted.