Signal 1
Authentication
SPF, DKIM and DMARC prove the mail really comes from your domain. Warm-up can't create these, so RoxInbox checks them first.
How it works
From a cold mailbox to a trusted sender, in ten steps.
Short answerRoxInbox connects your mailbox, fixes its DNS, then runs a daily cycle: it sends real conversations into a multi-provider network, watches where they land, has recipients act like people, and adjusts the next day's volume from those signals until the mailbox reaches its plateau.
Signal 2
History and volume
Domain age, and whether sending grows gradually. The ramp replaces a sudden spike with a smooth curve.
Signal 3
Recipient reactions
Opens, replies, rescues from spam and the absence of complaints. This is where the network does most of its work.
The lifecycle
Ten steps. Steps 4 to 9 repeat every day.
- 1
Connect the mailbox
Add the mailbox with OAuth for Microsoft 365, IMAP and SMTP with an app password for Google Workspace and most other providers, or plain IMAP and SMTP for corporate servers. Agencies can import hundreds of mailboxes from CSV. Credentials go straight into an encrypted vault.
- 2
Diagnose
Before anything is sent, RoxInbox checks SPF, DKIM, DMARC, MX and PTR records, looks the domain and IP up on major blocklists, and notes the domain's age. Anything broken comes with a fix you can copy.
- 3
Plan the ramp
RoxInbox builds a ramp for the mailbox: a starting volume of 2-5 emails a day, a target of 30-50, and a provider mix. New domains, aged domains and recovering domains get different curves.
- 4
Run the daily cycleDaily
Each day the scheduler turns the plan into tasks: which network mailboxes to write to, when, and in what thread. No pair of mailboxes talks more than once every 5-7 days.
- 5
SendDaily
The mailbox sends AI-written messages over its own SMTP connection, in its industry and language, continuing earlier threads where they exist. No links, attachments or tracking.
- 6
Receive in the networkDaily
Network mailboxes on every provider check where the message landed: inbox, a tab such as Promotions, or spam.
- 7
Act like a recipientDaily
The receiving mailbox opens the message, rescues it from spam if needed, sometimes stars it, and replies 40-60% of the time, all with human delays and working hours.
- 8
Collect signalsDaily
RoxInbox records spam placement, bounces, throttling codes, and postmaster data where available, for every mailbox and provider.
- 9
AdjustDaily
The ramp updates daily. Clean signals speed it up, spam signals slow it down, and a high spam rate pauses the mailbox and sends you an alert.
- 10
Reach the plateau and keep protecting
At its working volume the mailbox moves to background warm-up at about 20-30% of its sending, with health scores, scheduled placement tests and alerts for as long as you send.
Network design
Why the network is hard to fingerprint.
Large providers can discount warm-up traffic when thousands of accounts talk to the same addresses on the same timings. RoxInbox is designed so that pattern never forms.
No single pool
The network is split into isolated segments of 500-1,000 mailboxes. A customer only ever touches a small part of it.
Real accounts with history
Network mailboxes live on real domains with websites, MX records and age, and carry ordinary mail beyond warm-up.
Varied content
LLM-written conversations of different lengths, languages and styles, with no templates or codes in subject lines, deduplicated across the whole network.
Human timing
Delays come from distributions, not constants. Mailboxes keep working hours in their time zone and take weekends and holidays.
Stable identity
One mailbox keeps one IP, region and client. A mailbox that jumps between IPs is a red flag to providers.
Many providers
No provider holds more than 40% of the network, so a crackdown by one can't wipe out everyone's reputation.
Connect a mailbox and watch step 2 happen.
The DNS diagnosis runs the moment you connect. Or run it now, free, without an account.