Basic Requirements
If you want to make your e-mail cover letter grab the attention of the potential employer then you should include the information that will make the employer to open your resume.
There are some basic points you should consider them while writing e-mail cover letter.
Mention the name of the position you are applying for.
How you are the perfect candidate for the position being offered.
Ask directly for an interview.
Mention your contact address, telephone no./mobile no or e-mail-id.
Tips
Just like an effective cover letter writing tips, there are also some important tips for e-mail cover letter writing. These tips will help you to write a dynamic and effective e-mail cover letter.
Include subject line.
If you are sending a cover letter through e-mail, make sure that there will be a subject line with subject explanation. Don't write only subject code or job code.
Keep it short.
According to expert your cover letter must be of one page only having 150 words. So try to write it in brief.
Use Standard business format.
As e-mail cover letter is same as that of simple cover letter, so follow same rules while writing it. Such as initial salutation (Dear Mr. Peter), body part and closing paragraph (like sincerely).
Never include attachments (unless requested to do so).
In some companies, e-mails with attachments are not allowed or they block it. So if you are sending e-mail cover letter with the attachment then it would never be even received.