adding signature in mail by php

I want to add signature like gmail in my message body in my php mail script.That signature should show when somebody open to read my mail.Similar to gmail.But when i am attaching image in message variable and sending mal to gm开发者_JAVA技巧ail this is not appearing directly.To watch the signature i would have to click on link "display image" in gmail.Any other idea to show this signature image directly from php mail. Thanks

A signature is just a part of an email. For plain text mails it is usually separated by a line containing "-- " (that's dash dash space), however, some mail services use different separators. If you want to use images in your signature you need to compose a HTML mail since the signature is nothing else than some part of the message.