Struct MailMessage 

pub struct MailMessage {
    pub subject: String,
    pub body: String,
    pub html: Option<String>,
    pub from: Option<String>,
    pub from_name: Option<String>,
    pub reply_to: Option<String>,
    pub cc: Vec<String>,
    pub bcc: Vec<String>,
    pub headers: Vec<(String, String)>,
    pub attachments: Vec<MailAttachment>,
}

A mail message for email notifications.

Fields

subject: String

Email subject line.

body: String

Plain text body.

html: Option<String>

Optional HTML body.

from: Option<String>

From address (if different from default).

from_name: Option<String>

From display name override (e.g. tenant business name). Overrides MailConfig::from_name.

reply_to: Option<String>

Reply-to address.

cc: Vec<String>

CC recipients.

bcc: Vec<String>

BCC recipients.

headers: Vec<(String, String)>

Custom headers.

attachments: Vec<MailAttachment>

Inline attachments. Per CONTEXT.md D-09, all attachments are in-memory Vec<u8>.

Implementations

impl MailMessage

pub fn new() -> Self

Create a new empty mail message.

pub fn subject(self, subject: impl Into<String>) -> Self

Set the subject line.

pub fn body(self, body: impl Into<String>) -> Self

Set the plain text body.

pub fn html(self, html: impl Into<String>) -> Self

Set the HTML body.

pub fn from(self, from: impl Into<String>) -> Self

Set the from address.

pub fn from_name(self, name: impl Into<String>) -> Self

Override the sender display name for this message (e.g. tenant business name). Takes precedence over MailConfig::from_name.

pub fn reply_to(self, reply_to: impl Into<String>) -> Self

Set the reply-to address.

pub fn cc(self, email: impl Into<String>) -> Self

Add a CC recipient.

pub fn bcc(self, email: impl Into<String>) -> Self

Add a BCC recipient.

pub fn header(self, name: impl Into<String>, value: impl Into<String>) -> Self

Add a custom header.

pub fn attachment( self, filename: impl Into<String>, content_type: impl Into<String>, content: Vec<u8>, ) -> Result<Self, Error>

Add an attachment to the mail message.

Returns Err(Error::AttachmentTooLarge { .. }) if content.len() exceeds MAX_ATTACHMENT_BYTES (25 MB) per CONTEXT.md D-11. The cap is per-attachment; no cumulative cap is enforced (Resend’s 40 MB total is the carrier’s responsibility).

Multiple calls accumulate.

Trait Implementations

impl Clone for MailMessage

fn clone(&self) -> MailMessage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MailMessage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MailMessage

fn default() -> MailMessage

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MailMessage

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MailMessage

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.