Files
anouma/lib/email/transport.ts
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maro 7edeafe7c3
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Improve email branding and SMTP envelope
2026-09-18 12:51:40 +02:00

45 lines
1.7 KiB
TypeScript

import nodemailer from "nodemailer";
let cached: nodemailer.Transporter | null = null;
/** SMTP transporter for the existing ANOUMA mail system - no external newsletter service. */
export function getMailTransport(): nodemailer.Transporter {
if (cached) return cached;
const { SMTP_HOST, SMTP_PORT, SMTP_USER, SMTP_PASSWORD } = process.env;
if (!SMTP_HOST || !SMTP_PORT || !SMTP_USER || !SMTP_PASSWORD) {
throw new Error("SMTP_HOST, SMTP_PORT, SMTP_USER and SMTP_PASSWORD must be set to send email.");
}
cached = nodemailer.createTransport({
host: SMTP_HOST,
port: Number(SMTP_PORT),
secure: Number(SMTP_PORT) === 465,
tls: {
// Keep certificate verification enabled by default. A private SMTP
// proxy may expose a self-signed certificate; that deployment can
// explicitly opt out without weakening unrelated HTTPS requests.
rejectUnauthorized: process.env.SMTP_TLS_REJECT_UNAUTHORIZED !== "false",
},
connectionTimeout: 10000,
greetingTimeout: 10000,
socketTimeout: 20000,
auth: { user: SMTP_USER, pass: SMTP_PASSWORD },
});
return cached;
}
export function getMailFrom(): string {
const configured = (process.env.SMTP_FROM || process.env.SMTP_USER || "support@anouma.org").trim();
const unquoted = configured.replace(/^("|')(.*)\1$/, "$2").trim();
// Keep the address in the message header, but show only ANOUMA in mail clients.
if (unquoted.includes("<") && unquoted.includes(">")) return unquoted;
return `ANOUMA <${unquoted}>`;
}
/** Envelope sender used by strict SMTP relays for sender ownership checks. */
export function getMailEnvelopeFrom(): string {
return process.env.SMTP_USER || "support@anouma.org";
}