Status Recipient & Provider Subject & MTA Response Sending Inbox Server & Route Primary Mode & Reply Timestamp

Two-Server Mail Infrastructure

Server 1 (Hostinger Postal) handles clean external delivery; Server 2 (DigitalOcean Mailcow) handles inbound MX, Dovecot IMAP storage, and fleet warmup.

Domains & DNS Authentication Matrix (6 Domains)

Live domain quotas from Mailcow API paired with public DNS verification (MX, SPF, Mailcow DKIM, Postal DKIM, DMARC, Return-Path).

All 19 Mailboxes on Mailcow (Live Quotas & Safe Cold Limits)

13 mailboxes in active daily warmup across 4 outreach domains, 4 dormant mailboxes on p2pestimating.com, 1 system inbox, and 1 brand inbox.

Mailbox & Persona Domain Warmup Status Stored Messages Storage Used Daily Warmup Cap Safe Cold Limit Last IMAP Login
LOCKED DOCTRINE: 4 PRIMARY-INBOX HARD RULES

How Every Cold Email Lands in Gmail Primary (Not Promotions or Spam)

1. Zero Open-Tracking Pixels & Zero Link Tracking
Open-tracking pixels and click-redirect wrappers are permanently OFF so Gmail never flags your emails as bulk marketing. Success is measured by real replies and deliveries.
2. 100% Pure Plain Text (text/plain Only, Zero HTML)
Every cold email is sent as pure text/plain with zero HTML tags, zero styling, and zero images, identical to a personal email typed by hand.
3. Mandatory Wording Variation (Spintax) on Every Email
Every campaign automatically rotates greetings, phrases, and sign-offs using spintax so no two outbound emails ever share an identical text fingerprint.
4. Natural Human Pacing (Random 4 to 8 Minute Gaps)
Emails drip out one by one with randomized 4 to 8 minute pauses between sends during recipient business hours, never in robotic bursts.
ARCHITECTURE & PINNING

How Your Two Servers Work Together

Your infrastructure uses a split outbound/inbound design that protects your IP reputation and bypasses DigitalOcean's Port 25 block:

  • Outbound Engine (Server 1: mail1.veritasmail.org / 147.79.78.36): Runs Postal on Hostinger VPS. Its IP is 100% CLEAN on every major blacklist (Spamhaus, Barracuda, SpamCop, SORBS). All external cold and seed warmup emails leave the internet through this server.
  • Inbound & Unibox Hub (Server 2: mail2.veritasmail.org / 142.93.11.206): Runs Mailcow Dockerized on DigitalOcean. All 6 domains point their MX records here so every reply lands in Dovecot IMAP. Whenever Mailcow sends an external email, Postfix relays it through mail1.veritasmail.org:2525 (user p2pdojo/outreach).
  • Strict Domain Pinning Rule: Never send from the same domain on two different outbound IPs simultaneously. All 4 active outreach domains are pinned to mail1 (147.79.78.36) for external delivery.
SAFE DAILY COLD VOLUME

How Many Cold Emails You Can Send Per Day

Based on 38 days of external seed warmup (3,310 sends) and 9 days of the current fleet peer-to-peer warmup cycle:

13 Active Warmup Inboxes (Ready Today)
resourcesweloveinc (4), stampedepay (3), papalifesupport (3), profitsscale (3)
30 - 45 / inbox = 390 to 585 cold / day
4 Dormant Inboxes on p2pestimating.com
join@, hello@, info@, support@ (After adding domain to Postal + 14d warmup)
15 -> 40 / inbox = +60 to 160 cold / day
1 Brand Inbox on p2pdojo.com
support@p2pdojo.com (Primary brand domain)
0 cold / day Protected (Warm & Support Only)

Keep warmup running at 15 to 20 warmup emails/day/inbox alongside cold campaigns so your reply ratio stays above 25%.

AUDIT ACTION ITEMS (4 FIXES TO HIT 99% DELIVERABILITY)

Exact Technical Fixes Found on Your Servers

FIX 1

Add Missing DMARC Record on profitsscale.com

profitsscale.com passes SPF, DKIM, and Return-Path, but has no _dmarc TXT record in public DNS. Google and Yahoo require DMARC for bulk senders.

_dmarc.profitsscale.com TXT "v=DMARC1; p=none; rua=mailto:dmarc@veritasmail.org; ruf=mailto:dmarc@veritasmail.org; fo=1"
FIX 2

Update Reverse DNS (PTR) on Hostinger Server 1 (147.79.78.36)

Currently 147.79.78.36 resolves to srv1281033.hstgr.cloud while Postal's HELO hostname is mail1.veritasmail.org. In the Hostinger VPS panel, set the PTR record for 147.79.78.36 to:

147.79.78.36 PTR -> mail1.veritasmail.org
FIX 3

Remove 2 Dead Seed Domains from mail1 /root/warmup_inboxes.json

Set #2 in /root/warmup_inboxes.json on mail1 includes melfinservices.com (expired/no MX) and envisioneddesignsbydt.com (550 Access Denied on Outlook). These caused all 10 Held and 7 HardFail events in Postal.

Remove *@melfinservices.com and *@envisioneddesignsbydt.com from /root/warmup_inboxes.json
FIX 4

Add p2pestimating.com to Postal Before Sending Outbound

Mailcow relays p2pestimating.com through mail1:2525, which rejects it with 530 From/Sender name is not valid because p2pestimating.com is not registered in Postal's outreach server yet.

Register p2pestimating.com in Postal + publish postal-*._domainkey TXT & psrp CNAME