rusmes_proto/
error.rs

1//! Error types for RusMES protocol operations
2
3use thiserror::Error;
4
5#[derive(Error, Debug)]
6pub enum MailError {
7    #[error("Invalid email address: {0}")]
8    InvalidAddress(String),
9
10    #[error("Invalid domain: {0}")]
11    InvalidDomain(String),
12
13    #[error("Invalid username: {0}")]
14    InvalidUsername(String),
15
16    #[error("Message too large: {size} bytes (max: {max} bytes)")]
17    MessageTooLarge { size: usize, max: usize },
18
19    #[error("Invalid MIME structure: {0}")]
20    InvalidMime(String),
21
22    #[error("IO error: {0}")]
23    Io(#[from] std::io::Error),
24
25    #[error("Parse error: {0}")]
26    Parse(String),
27
28    #[error("Serialization error: {0}")]
29    Serialization(String),
30
31    /// Local-part contains non-ASCII bytes but SMTPUTF8 was not negotiated.
32    #[error("non-ASCII local-part requires SMTPUTF8 negotiation (RFC 6531)")]
33    NonAsciiLocalPartRequiresSMTPUTF8,
34}
35
36pub type Result<T> = std::result::Result<T, MailError>;
rusmes_proto/error.rs

rusmes_proto/
error.rs
