| Operator | Definition | Example(s) |
|---|---|---|
| from: | Used to specify the sender | Example - from:amy Meaning - Messages from Amy |
| to: | Used to specify a recipient | Example - to:david Meaning - All messages that were sent to David (by you or someone else) |
| subject: | Search for words in the subject line | Example - subject:dinner Meaning - Messages that have the word "dinner" in the subject |
| OR | Search for messages matching term A or term B* | Example - from:amy OR from:david Meaning - Messages from Amy or from David |
| - (hyphen) | Used to exclude messages from your search | Example - dinner -movie Meaning - Messages that contain the word "dinner" but do not contain the word "movie" |
| label: | Search for messages by label* *There isn't a search operator for unlabeled messages | Example - from:amy label:friends Meaning - Messages from Amy that have the label "friends" Example - from:david label:my-family |
| has:attachment | Search for messages with an attachment | Example - from:david has:attachment Meaning - Messages from David that have an attachment |
| filename: | Search for an attachment by name or type | Example - filename:physicshomework.txt Example - label:work filename:pdf |
| " " | Used to search for an exact phrase* *Capitalization isn't taken into consideration | Example - "i'm feeling lucky" Example - subject:"dinner and a movie" |
| ( ) | Used to group words Used to specify terms that shouldn't be excluded | Example - from:amy(dinner OR movie) Example - subject:(dinner movie) |
| in:anywhere | Search for messages anywhere in your account* *Messages in Spam and Trash are excluded from searches by default | Example - in:anywhere movie Meaning - Messages in All Mail, Spam, and Trash that contain the word "movie" |
| in:inbox in:trash in:spam | Search for messages in Inbox, Trash, or Spam | Example - in:trash from:amy Meaning - Messages from Amy that are in Trash |
| is:starred is:unread is:read | Search for messages that are starred, unread or read | Example - is:read is:starred from:David Meaning - Messages from David that have been read and are marked with a star |
| cc: bcc: | Used to specify recipients in the cc: or bcc: fields* *Search on bcc: cannot retrieve messages on which you were blind carbon copied | Example - cc:david Meaning - Messages that were cc-ed to David |
| after: before: | Search for messages sent during a certain period of time* *Dates must be in yyyy/mm/dd format. | Example - after:2004/04/16 before:2004/04/18 Meaning - Messages sent after April 16, 2004, but before April 18, 2004.* *More precisely: Messages sent on April 17, 2004. |
| is:chat | Search for chat messages | Example - is:chat monkey Meaning - Any chat message including the word "monkey". |
| You type this text | Server should respond with this |
| TELNET mail.example.com 25 | Trying 10.10.10.1. Connected to mail.example.com. Escape character is '^]'. 220 mail.example.com |
| HELO mail.example | 250 OK |
| MAIL FROM: | 250 OK - Mail from |
| RCPT TO: | 550 Relaying is prohibited |
| QUIT | 221 Closing connect, good bye |
This is an example of a mail server that DOES allow relaying.
| You type this text | Server should respond with this |
| TELNET mail.example.com 25 | Trying 10.10.10.1. Connected to mail.example.com. Escape character is '^]'. 220 mail.example.com |
| HELO mail.example | 250 OK |
| MAIL FROM: | 250 OK - Mail from |
| RCPT TO:<youremail@outsideaddress.com> | 250 OK |
| DATA | 354 End data with |
| From: sender@example.com To: youremail@outsideaddress.com Subject: Relay test This is a relay test and only a test. (type | 250 OK: Queued as T22122A5 |
| QUIT | 221 Closing connect, good bye |
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