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<h1>Package mail</h1>
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<dl>
<dd><code>import "net/mail"</code></dd>
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<p>
Package mail implements parsing of mail messages.
</p>
<p>
For the most part, this package follows the syntax as specified by RFC 5322.
Notable divergences:
</p>
<pre>* Obsolete address formats are not parsed, including addresses with
embedded route information.
* Group addresses are not parsed.
* The full range of spacing (the CFWS syntax element) is not supported,
such as breaking addresses across lines.
</pre>
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<dl>
<dd><a href="index.html#pkg-variables">Variables</a></dd>
<dd><a href="index.html#ParseAddressList">func ParseAddressList(list string) ([]*Address, error)</a></dd>
<dd><a href="index.html#Address">type Address</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#ParseAddress">func ParseAddress(address string) (*Address, error)</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#Address.String">func (a *Address) String() string</a></dd>
<dd><a href="index.html#AddressParser">type AddressParser</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#AddressParser.Parse">func (p *AddressParser) Parse(address string) (*Address, error)</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#AddressParser.ParseList">func (p *AddressParser) ParseList(list string) ([]*Address, error)</a></dd>
<dd><a href="index.html#Header">type Header</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#Header.AddressList">func (h Header) AddressList(key string) ([]*Address, error)</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#Header.Date">func (h Header) Date() (time.Time, error)</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#Header.Get">func (h Header) Get(key string) string</a></dd>
<dd><a href="index.html#Message">type Message</a></dd>
<dd>&nbsp; &nbsp; <a href="index.html#ReadMessage">func ReadMessage(r io.Reader) (msg *Message, err error)</a></dd>
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<h4>Examples</h4>
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<dd><a class="exampleLink" href="index.html#example_ParseAddress">ParseAddress</a></dd>
<dd><a class="exampleLink" href="index.html#example_ParseAddressList">ParseAddressList</a></dd>
<dd><a class="exampleLink" href="index.html#example_ReadMessage">ReadMessage</a></dd>
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<h4>Package files</h4>
<p>
<span style="font-size:90%">
<a href="http://localhost:6060/src/net/mail/message.go">message.go</a>
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<h2 id="pkg-variables">Variables</h2>
<pre>var <span id="ErrHeaderNotPresent">ErrHeaderNotPresent</span> = <a href="../../errors/index.html">errors</a>.<a href="../../errors/index.html#New">New</a>(&#34;mail: header not in message&#34;)</pre>
<h2 id="ParseAddressList">func <a href="http://localhost:6060/src/net/mail/message.go?s=3731:3785#L135">ParseAddressList</a></h2>
<pre>func ParseAddressList(list <a href="../../builtin/index.html#string">string</a>) ([]*<a href="index.html#Address">Address</a>, <a href="../../builtin/index.html#error">error</a>)</pre>
<p>
ParseAddressList parses the given string as a list of addresses.
</p>
<div id="example_ParseAddressList" class="toggle">
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<p class="exampleHeading toggleButton"><span class="text">Example</span></p>
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<div class="expanded">
<p class="exampleHeading toggleButton"><span class="text">Example</span></p>
<p>Code:</p>
<pre class="code">const list = &#34;Alice &lt;alice@example.com&gt;, Bob &lt;bob@example.com&gt;, Eve &lt;eve@example.com&gt;&#34;
emails, err := mail.ParseAddressList(list)
if err != nil {
log.Fatal(err)
}
for _, v := range emails {
fmt.Println(v.Name, v.Address)
}
<span class="comment"></pre>
<p>Output:</p>
<pre class="output">Alice alice@example.com
Bob bob@example.com
Eve eve@example.com
</pre>
</div>
</div>
<h2 id="Address">type <a href="http://localhost:6060/src/net/mail/message.go?s=3382:3482#L124">Address</a></h2>
<pre>type Address struct {
Name <a href="../../builtin/index.html#string">string</a> <span class="comment">// Proper name; may be empty.</span>
Address <a href="../../builtin/index.html#string">string</a> <span class="comment">// user@domain</span>
}</pre>
<p>
Address represents a single mail address.
An address such as &#34;Barry Gibbs &lt;bg@example.com&gt;&#34; is represented
as Address{Name: &#34;Barry Gibbs&#34;, Address: &#34;bg@example.com&#34;}.
</p>
<h3 id="ParseAddress">func <a href="http://localhost:6060/src/net/mail/message.go?s=3557:3608#L130">ParseAddress</a></h3>
<pre>func ParseAddress(address <a href="../../builtin/index.html#string">string</a>) (*<a href="index.html#Address">Address</a>, <a href="../../builtin/index.html#error">error</a>)</pre>
<p>
Parses a single RFC 5322 address, e.g. &#34;Barry Gibbs &lt;bg@example.com&gt;&#34;
</p>
<div id="example_ParseAddress" class="toggle">
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<p class="exampleHeading toggleButton"><span class="text">Example</span></p>
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<div class="expanded">
<p class="exampleHeading toggleButton"><span class="text">Example</span></p>
<p>Code:</p>
<pre class="code">e, err := mail.ParseAddress(&#34;Alice &lt;alice@example.com&gt;&#34;)
if err != nil {
log.Fatal(err)
}
fmt.Println(e.Name, e.Address)
<span class="comment"></pre>
<p>Output:</p>
<pre class="output">Alice alice@example.com
</pre>
</div>
</div>
<h3 id="Address.String">func (*Address) <a href="http://localhost:6060/src/net/mail/message.go?s=4723:4756#L160">String</a></h3>
<pre>func (a *<a href="index.html#Address">Address</a>) String() <a href="../../builtin/index.html#string">string</a></pre>
<p>
String formats the address as a valid RFC 5322 address.
If the address&#39;s name contains non-ASCII characters
the name will be rendered according to RFC 2047.
</p>
<h2 id="AddressParser">type <a href="http://localhost:6060/src/net/mail/message.go?s=3892:4027#L140">AddressParser</a></h2>
<pre>type AddressParser struct {
<span class="comment">// WordDecoder optionally specifies a decoder for RFC 2047 encoded-words.</span>
WordDecoder *<a href="../../mime/index.html">mime</a>.<a href="../../mime/index.html#WordDecoder">WordDecoder</a>
}</pre>
<p>
An AddressParser is an RFC 5322 address parser.
</p>
<h3 id="AddressParser.Parse">func (*AddressParser) <a href="http://localhost:6060/src/net/mail/message.go?s=4136:4199#L147">Parse</a></h3>
<pre>func (p *<a href="index.html#AddressParser">AddressParser</a>) Parse(address <a href="../../builtin/index.html#string">string</a>) (*<a href="index.html#Address">Address</a>, <a href="../../builtin/index.html#error">error</a>)</pre>
<p>
Parse parses a single RFC 5322 address of the
form &#34;Gogh Fir &lt;gf@example.com&gt;&#34; or &#34;foo@example.com&#34;.
</p>
<h3 id="AddressParser.ParseList">func (*AddressParser) <a href="http://localhost:6060/src/net/mail/message.go?s=4415:4481#L153">ParseList</a></h3>
<pre>func (p *<a href="index.html#AddressParser">AddressParser</a>) ParseList(list <a href="../../builtin/index.html#string">string</a>) ([]*<a href="index.html#Address">Address</a>, <a href="../../builtin/index.html#error">error</a>)</pre>
<p>
ParseList parses the given string as a list of comma-separated addresses
of the form &#34;Gogh Fir &lt;gf@example.com&gt;&#34; or &#34;foo@example.com&#34;.
</p>
<h2 id="Header">type <a href="http://localhost:6060/src/net/mail/message.go?s=2466:2497#L93">Header</a></h2>
<pre>type Header map[<a href="../../builtin/index.html#string">string</a>][]<a href="../../builtin/index.html#string">string</a></pre>
<p>
A Header represents the key-value pairs in a mail message header.
</p>
<h3 id="Header.AddressList">func (Header) <a href="http://localhost:6060/src/net/mail/message.go?s=3039:3098#L113">AddressList</a></h3>
<pre>func (h <a href="index.html#Header">Header</a>) AddressList(key <a href="../../builtin/index.html#string">string</a>) ([]*<a href="index.html#Address">Address</a>, <a href="../../builtin/index.html#error">error</a>)</pre>
<p>
AddressList parses the named header field as a list of addresses.
</p>
<h3 id="Header.Date">func (Header) <a href="http://localhost:6060/src/net/mail/message.go?s=2817:2858#L104">Date</a></h3>
<pre>func (h <a href="index.html#Header">Header</a>) Date() (<a href="../../time/index.html">time</a>.<a href="../../time/index.html#Time">Time</a>, <a href="../../builtin/index.html#error">error</a>)</pre>
<p>
Date parses the Date header field.
</p>
<h3 id="Header.Get">func (Header) <a href="http://localhost:6060/src/net/mail/message.go?s=2625:2663#L97">Get</a></h3>
<pre>func (h <a href="index.html#Header">Header</a>) Get(key <a href="../../builtin/index.html#string">string</a>) <a href="../../builtin/index.html#string">string</a></pre>
<p>
Get gets the first value associated with the given key.
If there are no values associated with the key, Get returns &#34;&#34;.
</p>
<h2 id="Message">type <a href="http://localhost:6060/src/net/mail/message.go?s=882:938#L32">Message</a></h2>
<pre>type Message struct {
Header <a href="index.html#Header">Header</a>
Body <a href="../../io/index.html">io</a>.<a href="../../io/index.html#Reader">Reader</a>
}</pre>
<p>
A Message represents a parsed mail message.
</p>
<h3 id="ReadMessage">func <a href="http://localhost:6060/src/net/mail/message.go?s=1075:1130#L40">ReadMessage</a></h3>
<pre>func ReadMessage(r <a href="../../io/index.html">io</a>.<a href="../../io/index.html#Reader">Reader</a>) (msg *<a href="index.html#Message">Message</a>, err <a href="../../builtin/index.html#error">error</a>)</pre>
<p>
ReadMessage reads a message from r.
The headers are parsed, and the body of the message will be available
for reading from r.
</p>
<div id="example_ReadMessage" class="toggle">
<div class="collapsed">
<p class="exampleHeading toggleButton"><span class="text">Example</span></p>
</div>
<div class="expanded">
<p class="exampleHeading toggleButton"><span class="text">Example</span></p>
<p>Code:</p>
<pre class="code">msg := `Date: Mon, 23 Jun 2015 11:40:36 -0400
From: Gopher &lt;from@example.com&gt;
To: Another Gopher &lt;to@example.com&gt;
Subject: Gophers at Gophercon
Message body
`
r := strings.NewReader(msg)
m, err := mail.ReadMessage(r)
if err != nil {
log.Fatal(err)
}
header := m.Header
fmt.Println(&#34;Date:&#34;, header.Get(&#34;Date&#34;))
fmt.Println(&#34;From:&#34;, header.Get(&#34;From&#34;))
fmt.Println(&#34;To:&#34;, header.Get(&#34;To&#34;))
fmt.Println(&#34;Subject:&#34;, header.Get(&#34;Subject&#34;))
body, err := ioutil.ReadAll(m.Body)
if err != nil {
log.Fatal(err)
}
fmt.Printf(&#34;%s&#34;, body)
<span class="comment"></pre>
<p>Output:</p>
<pre class="output">Date: Mon, 23 Jun 2015 11:40:36 -0400
From: Gopher &lt;from@example.com&gt;
To: Another Gopher &lt;to@example.com&gt;
Subject: Gophers at Gophercon
Message body
</pre>
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