feat: netease_mail (#84)

Author: l1shen

src/mail/imap-smtp/actions.ts

@@ -0,0 +1,5 @@
+export const mailImapPort: number = 993;
+export const mailSmtpPort: number = 465;
+export const mailMessageFetchByteLimit: number = 5 * 1024 * 1024;
+export const mailAttachmentDownloadByteLimit: number = 25 * 1024 * 1024;
+export const mailConnectionTimeoutMs: number = 30_000;

src/mail/imap-smtp/config.ts

@@ -0,0 +1,10 @@
+export type MailProtocolErrorKind = "auth" | "folder_not_found" | "uid_not_found" | "timeout" | "network" | "provider";
+
+export class MailProtocolError extends Error {
+  readonly kind: MailProtocolErrorKind;
+
+  constructor(kind: MailProtocolErrorKind, message: string) {
+    super(message);
+    this.kind = kind;
+  }
+}