Here are a few things to know when your sending messages to Gmail.

  1. All text that looks like a URL will be hyper linked even if you didn’t intend it to be as the Gmail interface will make it click able. This could lead to additional and unexpected click thoughts that are not actually tracked in your reporting systems.
  2. Users can create tagged aliases for your messages by adding +text after their user alias; example: “contact+test @”. This is especially useful when testing co-registration sites to see where the address is being used.
  3. Under the settings > accounts tab you can add additional reply or sending addresses to your account, this matches nicely with #2.
  4. Auto sort your mail by building Filters and using Labels; Matches: subject:([Email Karma]) Do this: Apply label “Email Karma” for later retrieval and sorting.

For more fun and interesting things to do with Gmail read the official blog here