Credentials Vault & DNS Compliance

Connect your email channels securely. Credentials are encrypted in our vault with AES-256, and domain settings are monitored for SPF, DKIM, and DMARC compliance.

Feature Breakdown

FT-ACCT-001

Encrypted Credential Vault

Protects your SMTP credentials using industry-standard AES-256 encryption. Plaintext passwords never touch logs or persistent databases.

Technical Capabilities:

Encrypts account credentials before writing to the database.

Applies AES-256-CBC cipher with unique initialization vectors.

Saves decryption keys in isolated environment variables.

Restricts credential decryption exclusively to in-memory SMTP workers.

FT-ACCT-002

SMTP Handshake & OTP Verification Flow

Ensures newly connected credentials are valid and active before making them eligible to send campaign emails.

Technical Capabilities:

Performs a live SMTP connection check (EHLO + AUTH) immediately.

Generates a 6-digit OTP code and dispatches it directly to the connected inbox.

Requires the user to verify the OTP in the dashboard within 10 minutes.

Updates the sending channel state to READY only after successful input.

FT-ACCT-003

SPF / DKIM / DMARC Domain Checker

Guards your sender reputation by scanning DNS settings to ensure compliance with Yahoo, Gmail, and Outlook policies.

Technical Capabilities:

Performs async DNS checks (TXT records) for SPF, DKIM selectors, and DMARC.

Excludes domains with failing or missing records from sending pools.

Highlights health indicators in the account management interface.

Allows manual re-checks at any time without entering passwords again.

FT-ACCT-004

Plan Quota Limit Enforcement

Monitors and limits domain and email additions according to subscription package tiers.

Technical Capabilities:

Supports limits: Single (1 domain, 1 email) up to Unlimited (100 emails).

Disables 'Connect Account' buttons and shows explanations when limits are met.

Enforces limits at the API endpoint level to prevent system abuse.

Displays clean metrics comparing current usage against subscription limits.

Spec Sheet

Vault CryptographyAES-256-CBC with Node.js Crypto

DNS Resolutiondns.resolveTxt + dns.resolveCname

Verification Window10-Minute Sliding Window

Quota DatabaseMongoDB Plan Enforcement Layer

Need a Deep Dive?

See exactly how this module manages background queues, encryption, and delivery logic in our sequence flowchart.

View technical guide

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