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SMTP TLS (Transport Layer Security for email delivery) is a mechanism email servers can use to pass email between themselves in a secure manner. In essence, two servers which both support TLS first establish an encrypted channel of communications and then they pass email through it, ensuring that the messages are secured during transmission between the servers, even if the messages themselves were not already encrypted.

  • Encryption of email during transmission from you to LuxSci
  • Encryption of email during transmission from LuxSci to supporting recipients
  • Message "emerges" from the encrypted channels at the recipient's email server and subsequently appears and behaves like a "normal email message".

SMTP TLS is great when your recipients email servers support it. However, many recipient's servers do not (how to tell, TLS support checker tool) — for these, other modes of SecureLine, such as Escrow, will be automatically used when encryption is required.

Opportunistic TLS and Forced TLS

Opportunistic TLS
Email message is delivered to the recipient server over a TLS-secured channel if the recipient server supports it. If not, the message is delivered over an unsecured channel.

All messages sent by all LuxSci users (including those not using SecureLine encryption) always employ "Opportunistic TLS", unless "Forced TLS" is in use.

Forced TLS
Email message is delivered to the recipient server over a TLS-secured channel if the recipient server supports it. Otherwise, the message is automatically sent via Escrow or PGP or S/MIME to ensure that the message content is never delivered insecurely.

With SecureLine, you can take advantage of the simplicity of TLS encryption when it is possible and know that security will "fall back" to another method when it is not possible or when the recipient's servers no longer support it.

Forced TLS for Banks

When communicating with many companies (such as banks), "Opportunistic TLS" is insufficient. These organization REQUIRE you to never send them email if it is insecure, even if that is because their own servers are broken. "Forced TLS" handles this.

If you communicate with an organization, like Bank of America, that requires enforced TLS (but where you do not otherwise need to use SecureLine encryption services), LuxSci can ensure that all email to that organization goes over TLS or is never sent. SecureLine licenses are not even required for this — only an official request for that from your recipients.

SecureLine SMTP Forced TLS Features


Meets HIPAA Requirements

Use TLS automatically if the recipient's server support's it?

Never send messages insecurely to servers not supporting TLS?

Never send messages insecurely to servers with broken TLS?

Never use TLS with servers providing weak (less than 128bit) encryption?

Encrypt messages from you to LuxSci servers?

Encrypt messages from LuxSci servers to your recipient's servers?

Messages appear in the recipient's INBOX like other normal email messages?

Send from LuxSci WebMail?

Send from any SMTP program or device (e.g. Outlook, Thunderbird, iPhone)?

Starting at $12/mo
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"Your standard and HIPAA-compliant hosting services are awesome, working exactly like we envisioned. Pricing is very fair and support has been wonderful! Would definitely recommend you."

—Jeff Deitch, President, InfoWerks Data Services, Incorporated, Pharmacy Data Security and Retention

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• Access Anywhere
• Fast and Robust
• Super Secure
• Tons of Features
• Customizable
• Mobile Friendly

Send and receive email from your favorite programs, including:

 Microsoft Outlook
 Mozilla Thunderbird
 Apple Mail
 Windows Mail

... Virtually any program that supports POP, IMAP, or SMTP

Keep your email, contacts, and calendars in sync:

 Apple iPhone and iPad
 Android Devices
 Windows Phone

... Any device with Exchange ActiveSync (EAS) support

Relay your server's mail through LuxSci via smarthost:

• Resolve issues with ISP sending limits and restrictions
• Improve deliverability with better IP reputation and IP masking
• Take advantage of Email Archival and HIPAA Compliance
• Even setup smarthosting from Google Apps!

Free web site hosting with any email account:

• Start with up to 10 web sites and MySQL databases
• DNS services for one domain included
• Tons of features and fully HIPAA capable

LuxSci's focus on security and privacy:

• Read The Case for Email Security
• Read Mitigating Security & Privacy Threats
• Review our Privacy Policy

The most accurate, flexible, and trusted filters in the business:

• Premium protection with Intel Security Saas
• Realtime virus database guards against the latest threats
• Seven-day quarantine lets you put eyes on every filtered email
• Supplement with our Basic Spam Filter for even more features

End-to-end secure email encryption — to anyone, from anyone:

• No setup required — encryption is automatic and easy to use
• Secure outbound email with TLS, PGP, S/MIME, or Escrow
• Free inbound encryption via our SecureSend portal
• Independent of your recipient's level of email security
• Widely compatible and fully HIPAA Compliant

Add an extra layer of security with an SSL Certificate:

• Secure your web site
• Debrand LuxSci WebMail with your own secure domain
• Access secure email services via your own secure domain

Encrypt your service traffic via secure tunnel:

• Add another layer of security to your SSL connections
• WebMail, POP, IMAP, SMTP, web/database access
• SecureForm posts, SecureLine Escrow, SecureSend access
• Restrict your account to VPN access only

Secure long-term message archival:

• Immutable, tamperproof email retention with audit trails
• No system requirements — minimal setup, even less upkeep
• Realtime archival of all inbound and outbound messages
• Works anywhere — even with non-LuxSci email hosting

Free data backups included with all email hosting accounts:

• Automatic backups of all email, WebAides, web/database data
• Seven daily backups and up to four weekly backups
• Unlimited restores included at no additional cost
• Custom backup schedules for dedicated servers

Automate your email management:

• Save messages to specific folders or to LuxSci WebAides
• Advanced text scanning with regular expressions
• Tag messages, alter subject lines, or add custom headers
• Filter by message charset, type, TLS status, DKIM status
• Chain filters together for even more complex actions

• Bulk add and edit users, aliases and more
• Control sharing and access globally or on a granular level
• Delegate user roles through permissions
• Configure account-wide taglines, sending restrictions, and more
• Remotely administer account via SOAP API

Share, collaborate, organize, synchronize:

• Calendars, Contacts, Documents, Notes, Widgets, Workspaces
• Fine-grained access control and security
• Access anywhere via secure web portal or smartphone
• Save over solutions like Microsoft Exchange

Free folder sharing for all email hosting accounts:

• Share mail folders with other users in your account
• Subscribe to only the folders you want to see
• Set read-only or read-write access control
• View all personal and shared folders via unified web interface

Color code and label your email messages:

• Define and assign multiple IMAP keywords to each message
• Filter, search, and sort by tags
• Compatible and synchronizes with any IMAP email client
• Also usable with WebAide entries