readSmtpPort (generic_imap/config.ts)

Validates IMAP/SMTP credentials, reads SMTP port, and provides default SMTP host logic for generic mail integration.

// Source: https://github.com/oomol-lab/open-connector | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
// Provided via justclaw.it.com; keep this notice with the code.
import type { MailCredential } from "../../mail/imap-smtp/protocol.ts";
import type { MailRuntimeConfig } from "../../mail/imap-smtp/runtime.ts";

import { assertPublicHttpUrl, isPrivateNetworkAccessAllowed } from "../../core/request.ts";
import { ProviderRequestError } from "../provider-runtime.ts";

/**
 * Generic IMAP/SMTP mailbox runtime configuration.
 *
 * Unlike the provider-specific mail integrations, the IMAP and SMTP hosts are
 * supplied by the user, so any mailbox exposing IMAP over implicit TLS can be
 * connected with an application password.
 */
export const generi

... (truncated -- full source via MCP)