Gmail includes built-in support for LISTSERVs, which are mailing lists. You can use the contact-grouping in Gmail's contacts editor to create groups of email addresses. You can specify the name of the contact group while composing an email, as a means of sending the same email to the entire mailing list at once. Gmail's contact-grouping feature is intended for small, personal mailing lists. If you want to create a large, commercial mailing list, Google recommends using Google Groups instead of Gmail for this purpose.
Step 1
Open the Gmail Web page at Mail.Google.com and click "Contacts" at the left side of the Gmail page.
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Step 2
Click "New Group" at the left side of the contacts list, type a name for your mailing list and press "Enter."
Step 3
Click the name of your mailing list at the left side of the contacts list.
Step 4
Click the "Add to [Group Name]" button at the top of the contacts pane, type a comma-separated list of the email addresses you want on your mailing list and press "Enter."
Step 5
Click "Mail" at the left side of the page and click "Compose Mail."
Step 6
Type the name of your mialing list group into the "To" box and click "[Group Name] (Group)" in the drop-down box. Gmail automatically adds each email address in the group as a recipient.
Step 7
Compose the email normally, filling out the subject and body, and then click "Send" to send the email to every email address on your mailing list.