Email marketing is one of the effective medium marketing because it specifically target your desired market. But a successful campaign is not possible if you are careless enough in doing it. Here are some tips to start with:
Prepare for the email campaign letter, keep it clear and concise. You only have 30seconds attention retention of your reader. If your email campaign is not interesting enough they will just simply close your email and go to the next email from the inbox.
Countercheck email address so that you will not have many returned emails.
Check grammar and spelling. This is important since it is how you convey the message, it will sound off if you will have mistakes on these.
Do not spam, many email marketing letters looks like spam. Put valuable information and clearly make a difference from other email campaigns.
Attached a company profile and a link to your website or portfolio.