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TMailr

tmailr.com

From $2/mo Free plan WebAPI
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Spec score 8.3 #10 of 23 in Email Alias Services

What it is

TMailr combines receive-only temporary inboxes, masked forwarding aliases, email deliverability checks, and a developer sandbox on the web and through an API. Temporary inboxes use private links, receive mail only, and disappear when they expire. Free inboxes last 60 minutes by default, can be extended to 24 hours, and hold up to 50 messages; Pro inboxes are described as effectively unlimited and remain active while subscribed. Masked aliases forward messages to a real mailbox, can be paused or blocked separately, and keep the forwarding address out of TMailr pages and API responses. Deliverability tools include Gmail inbox tests, domain checks for MX, SPF, DMARC, MTA-STS, and TLS, plus header, address, and DMARC tools. Developers get test and live keys, JavaScript examples, polling, and signed webhooks. Incoming HTML is sanitized, remote images are blocked until requested, links show destinations, and attachments are virus-scanned; executable files are refused.

Spec sheet

What it does
TMailr provides receive-only temporary inboxes, masked forwarding aliases, deliverability tests, domain health checks, free email tools and a developer sandbox.Read 15 Oct 2026 · tmailr.com
Product
TMailr provides receive-only temporary inboxes, masked forwarding aliases, email deliverability testing, domain health checks, free analysis tools, and a developer sandbox.Read 8 Oct 2026 · tmailr.com
Intended users
The maker describes the service for people seeking email privacy and for senders who want to find out why their mail fails; its developer sandbox is presented for application email testing.Read 8 Oct 2026 · tmailr.com
API
The public API uses bearer keys and exposes sandbox creation and message retrieval under api.tmailr.io/v1.Read 15 Oct 2026 · tmailr.com
Alias limitation
Masked aliases receive and forward mail but TMailr does not send or reply on the user's behalf.Read 15 Oct 2026 · tmailr.com
API retention limits
A sandbox stores 500 messages; listings return the newest 100 and support cursor pagination up to 200 per request.Read 15 Oct 2026 · tmailr.com
Attachment protection
Attachments are virus-scanned, clean files are downloaded rather than rendered, and executable formats are refused.Read 15 Oct 2026 · tmailr.com
Company description
LinkedIn describes the maker simply as an information technology company.Read 15 Oct 2026 · linkedin.com
Company followers
The opened LinkedIn page displayed five followers for Bolrach Technologies Limited.Read 15 Oct 2026 · linkedin.com
Company headquarters
LinkedIn lists Bolrach Technologies Limited headquarters in Lagos, Lagos, Nigeria.Read 15 Oct 2026 · linkedin.com
Company industry
LinkedIn categorizes Bolrach Technologies Limited under Technology, Information and Media.Read 15 Oct 2026 · linkedin.com
Company size
LinkedIn lists the company size as 11–50 employees.Read 15 Oct 2026 · linkedin.com
Company type
LinkedIn identifies Bolrach Technologies Limited as privately held.Read 15 Oct 2026 · linkedin.com
Company website
LinkedIn lists bolrach.com as the maker's website.Read 15 Oct 2026 · linkedin.com
Content sanitization
Incoming HTML is sanitized, scripts/forms/frames are removed, remote images are blocked by default and links show their actual destinations.Read 15 Oct 2026 · tmailr.com
Custom domains
Users can connect a domain by adding TXT and MX records; ownership is rechecked daily.Read 15 Oct 2026 · tmailr.com
Deliverability test
The deliverability test reports observed SPF, DKIM, DMARC, alignment, TLS and reverse-DNS details from a received message.Read 15 Oct 2026 · tmailr.com
Deliverability tools
The service offers deliverability tests, Gmail inbox tests, domain health checks for MX, SPF, DMARC, MTA-STS and TLS, plus a header analyzer, address checker, and DMARC builder.Read 8 Oct 2026 · tmailr.com
Developer integrations
Developers can use an API with test and live keys, JavaScript SDK examples, polling, and signed webhooks for captured sandbox messages.Read 8 Oct 2026 · tmailr.com
Developer sandbox
Sandboxes are catch-all test inboxes lasting one year and support plus-addresses for CI email testing.Read 15 Oct 2026 · tmailr.com
Documentation
TMailr links a full API reference at docs.tmailr.com, while the developer page provides curl examples and webhook verification code.Read 15 Oct 2026 · tmailr.com
Domain health
The domain checker examines MX, SPF, DMARC, MTA-STS and TLS-RPT records.Read 15 Oct 2026 · tmailr.com
Email checker
The address checker identifies syntax problems, disposable domains, role mailboxes and Gmail dot or plus aliases.Read 15 Oct 2026 · tmailr.com
Email masking
Masked aliases forward mail to a real mailbox, can be paused or blocked individually, and do not reveal the forwarding address on TMailr pages or API responses.Read 8 Oct 2026 · tmailr.com
Gmail test
A separate test sends mail to a real Gmail mailbox and reports whether Gmail placed it in inbox or spam plus Gmail's authentication verdicts.Read 15 Oct 2026 · tmailr.com
Header analyzer
The header analyzer traces each Received hop, timing, TLS use and recorded SPF, DKIM and DMARC results without storing pasted headers.Read 15 Oct 2026 · tmailr.com
Inbox lifetime
Free inboxes last 60 minutes by default and can be extended to 24 hours.Read 15 Oct 2026 · tmailr.com
Inbox limits
Free inboxes hold up to 50 messages, while Pro inboxes are described as effectively unlimited and do not expire while subscribed.Read 8 Oct 2026 · tmailr.com
Inbox message limit
Free inboxes hold 50 messages; Pro inboxes are described as effectively unlimited.Read 15 Oct 2026 · tmailr.com
Inbox security
Inbox access uses a 256-bit secret whose hash is stored; knowing an email address alone does not reveal the inbox.Read 15 Oct 2026 · tmailr.com
Licence
The opened official pages describe a hosted service and API but publish no source code or open-source licence.Read 15 Oct 2026 · tmailr.com
Limit: account recovery
Losing the secret link normally prevents recovery of a temporary inbox or unclaimed alias.Read 15 Oct 2026 · tmailr.com
Limit: delivery guarantees
The terms disclaim guarantees that third-party providers will accept, deliver or correctly classify messages.Read 15 Oct 2026 · tmailr.com
Limit: rate limits
The acceptable-use policy prohibits bulk inbox creation and attempts to bypass rate limits.Read 15 Oct 2026 · tmailr.com
Maker legal name
The terms identify Bolrach Technologies Limited as the operator of TMailr.Read 15 Oct 2026 · tmailr.com
Masked aliases
Permanent aliases forward mail to a confirmed real mailbox and can be paused or blocked individually.Read 15 Oct 2026 · tmailr.com
Message safety
TMailr sanitizes incoming HTML, blocks remote images until requested, displays link destinations, and virus-scans attachments; executable file types are refused.Read 8 Oct 2026 · tmailr.com
Privacy and storage
TMailr says it encrypts stored data, holds only a hash of each inbox's 256-bit secret, and does not sell message content, use it for advertising, or train models on it.Read 8 Oct 2026 · tmailr.com
Privacy limits
TMailr states that stored mail is encrypted but is not end-to-end encrypted and advises against using disposable inboxes for genuinely sensitive information.Read 15 Oct 2026 · tmailr.com
SDKs
The developer page shows a JavaScript package named @tmailr/sdk and says both SDKs verify webhook signatures.Read 15 Oct 2026 · tmailr.com
Security isolation
Disposable-mail systems and storage are separated from the business-mail systems operated by Bolrach Technologies.Read 15 Oct 2026 · tmailr.com
Security limit
The maker says messages are not end-to-end encrypted and advises against using disposable inboxes for genuinely sensitive information.Read 8 Oct 2026 · tmailr.com
Support and vulnerability reports
The security page invites vulnerability reports by email to [email protected] and says the team will respond.Read 8 Oct 2026 · tmailr.com
Temporary inboxes
Temporary inboxes open through a secret link, require no account or card, receive mail only and delete their contents when they expire.Read 15 Oct 2026 · tmailr.com
Verification codes
The inbox interface extracts one-time verification codes and displays them for copying.Read 15 Oct 2026 · tmailr.com
Webhooks
Sandbox webhooks POST each arriving message and sign requests with HMAC-SHA256 using the X-TMailr-Signature header.Read 15 Oct 2026 · tmailr.com

Plans and prices

Free Free forever browser inboxes · masked aliases · 10 deliverability tests/month · free tools Read 15 Oct 2026 · tmailr.com
Pro $2.99 a month monthly inboxes never expire while subscribed · effectively unlimited messages · 25 custom domains Read 15 Oct 2026 · tmailr.com
API plan $9 a month monthly 300 credits/month · higher API limits · purchased credits continue after allowance Read 15 Oct 2026 · tmailr.com
Developer plan $9 a month $9 / month 300 credits/month; higher API limits; bought credits carry on after the monthly allowance Read 8 Oct 2026 · tmailr.com
Pay as you go $10, paid once from $10 per credit pack 120 credits in starting pack · credits never expire Read 15 Oct 2026 · tmailr.com
Pro $24 a year annual; save a third inboxes never expire while subscribed · effectively unlimited messages · 25 custom domains Read 15 Oct 2026 · tmailr.com

Every TMailr plan and price →

Strong points and limits

Strong points

  • Free plan includes 10 deliverability tests monthly
  • Temporary inboxes can extend to 24 hours
  • Aliases can be paused or blocked individually
  • Checks MX, SPF, DMARC, MTA-STS, and TLS
  • Provides signed webhooks for sandbox messages

Limits

  • Messages are not end-to-end encrypted
  • Free inboxes hold up to 50 messages
  • Temporary inboxes expire
  • Aliases cannot send or reply

Who it suits

TMailr suits people seeking disposable inboxes or masked forwarding, senders diagnosing delivery problems, and developers testing application email. Its domain and API tools target users managing email infrastructure.

Verdict

TMailr covers temporary receiving, forwarding privacy, deliverability analysis, and application testing in one service. Users handling genuinely sensitive information should note the stated encryption limitation.

Where Specifiction places it

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