Overlook

Email Sync · Built by CustomSaaS

Smarter email
synchronisation.

Most professionals juggle three or four mailboxes — work, personal, matters, archives. Overlook brings them all into one secure, organised, searchable workspace. Connect any provider. Sync intelligently. Find anything in seconds.

Connected Mailboxes
4 accounts · syncing
[email protected]● 1,247 synced
[email protected]● 432 synced
[email protected]● 8,891 synced
[email protected]● syncing 64%
End-to-end encrypted
How it works

Five stages.
Then it just works.

Overlook is designed to be set up once and then forgotten. Each stage runs continuously, automatically — you only see the results.

1

Connect

Add Gmail, Outlook, IMAP, Exchange — any combination of accounts.

2

Sync & Process

Mailboxes pulled in, deduplicated, threaded across providers.

3

Secure & Validate

Encrypted at rest. Sender authentication checked. Phishing flagged.

4

Organise

Auto-categorisation by matter, project, sender, or your custom rules.

5

Search & Access

Instant full-text search across every account, attachment, and thread.

Multi-platform

Every provider.
One inbox.

Most email tools force a "default account" on you. Overlook treats every connected mailbox as equal — search, send, file, and archive across all of them as if they were one.

  • Gmail and Google Workspace (full IMAP + API)
  • Microsoft 365 / Outlook / Exchange (Graph API + EWS)
  • Generic IMAP for legacy and self-hosted servers
  • Cross-account threading: replies on different mailboxes stitch back together
  • Unified contact graph across all connected accounts

Universal sync

One sync engine across every major email standard.

Smart threading

Reply chains follow the conversation, not the mailbox.

Instant search

Full-text across body, headers, attachments — milliseconds.

Auto-organisation

Matter codes, projects, and rules tag every message at sync time.

Built for compliance

Encrypted at rest.
Auditable in transit.

Email is among the most sensitive data your firm holds. Overlook treats it that way — with encryption, access logs, and retention policies that satisfy your regulator.

End-to-end encryption

AES-256 at rest. TLS 1.3 in transit. Encryption keys per workspace.

Full audit trail

Every access, search, export, and configuration change is logged with operator and timestamp.

Retention & legal hold

Configurable retention windows, legal hold capability, defensible deletion.

Phishing & spoofing detection

SPF, DKIM, DMARC validated at sync. Suspicious senders flagged before they reach the inbox view.

GDPRCompliant
SRAAligned
SOC 2Type II
ISO 27001Certified

Stop hunting
across mailboxes.

Request a demo. We'll show you Overlook running with sample mailboxes — and discuss how the deployment would work for your team.

Request a demo →
Speak directly

Skip the sales team.
Talk to a Lead Engineer.

Tell us about your business bottleneck. If we can solve it, you'll know within 24 hours. If we can't, we'll tell you who can.

  • Response within 24 hours, weekdays
  • NDA available before any discussion
  • No obligation, no sales pitch
  • Direct line to senior technical staff
GDPRUK GDPRISO 27001SOC 2

Encrypted in transit. Your data is never sold or used to train AI.