Cloud Fax Services Technical Specifications, Features and Functions

Secure and seamless faxing directly from your business application, at your workstation, or from your mobile device—always flexible and tailored to your needs. No need to install a specific infrastructure.

General Cloud Fax Features

Retarus Cloud Fax Services make it possible to send and receive documents worldwide—from receipts to delivery notices, invoices, and customer information. The Retarus Global Delivery Network sends faxes quickly and reliably and confirms delivery immediately with existing systems.

  • Send and receive faxes with applications and at your workstation
  • Completely replaces existing fax server
  • No hardware and software installation needed, no maintenance
  • Easy-to-integrate APIs – REST, SOAP, FTP, SMTP
  • High availability, reliable transmission, transaction security
  • Nearly unlimited capacity for sending and receiving
  • Redundant connection via multiple telephone carriers
  • Active carrier management
  • Supports transmission priorities
  • Transmission times can be set to the minute
  • Up to 100% delivery success thanks to never busy technology
  • Real-time monitoring of incoming and outgoing faxes
  • Comprehensive reports, statistics, and analyses
  • Express implementation upon request
  • Continued development – ready for next generation of technology
  • Transparent billing based on pay per use

Services for Receiving Faxes (Inbound)

Receive faxes into any application or via web services

HTTP(S)

Retarus receives faxes and forwards them directly to your application. Incoming telefaxes for automatic processing in business applications or for archiving.
More info
  • Automatic processing and workflow integration possible
  • Use of existing fax numbers possible incl. porting
  • Backup option for incoming faxes

Retarus fax to applications

Fax for applications

Receive faxes with FTP server

FTP

Retarus receives telefaxes and places the files for retrieval from an FTP server.
More info
Fax2FTP

Fax2FTP

Receive faxes into any email client

SMTP

With Retarus’ fax to email services, digital faxes are received directly in the email inbox. Each employee can be assigned a unique fax number or can receive faxes through a central service number and forward them to the correct recipient in the company, which depends on the sender.
More info
  • Automatic synchronization of receiving numbers with email accounts from LDAP or Active Directory
  • Ability to set up central service number
  • Smart routing depending on sender recognition

fax to email

Fax to Email

Receive faxes with document capture (OCR/ICR/IDR)

Retarus Fax2EDI makes it possible to easily connect business partners who do not use EDI to EDI communication. The partner’s existing communication processes do not change. The partner sends data, for example, orders, delivery notices, and invoices, by fax as usual. Cumbersome use of WebEDI portals is not necessary.
More info
  • Conversion and delivery of business data directly to your ERP system
  • Use of existing communication processes

Fax2EDI

Fax2EDI

Receive faxes with any multi-function device

Receive incoming faxes on printers and multifunction devices Simultaneous delivery via email possible.
More info
  • Transaction security
  • Flexible connection via SMTP and FTP
  • Optimized format adjustment, reliable conversion of multi-page faxes
  • Parallel delivery as paper printout on fax machines and redirect to email client

Cloud Fax Functions Overview – Receiving Faxes

Functions Fax InboundHTTPSFTPSMTPFax2EDIMFD connector
Automatic fax replyYou can set up an automatic reply to incoming faxes, which can be customized to suit your needs. If desired, the previously received fax can be inserted as a thumbnail. It is also possible to send different messages depending on the source number.     
Barcode and OCR recognition     
Digital signatureOur service for digital signatures allows you to document fax receipt in a way that is compliant with security and legal regulations. Retarus eSign ensures that faxes you receive from business partners and customers, such as quotations, orders, invoices, customs forms, certificates, formulas, and lab reports cannot be tampered with by third parties. You receive the fax as a signed PDF document that you can view and save.

  • Qualified electronic signature
  • PDF signature integrated in the document
  • Optional signature verification in PDF files
  • Simple verification with Adobe Reader
  • No costs incurred for hardware, software, or maintenance
  • Supports legally compliant signature cards

     
PDF comment function     
Receipt archiveIncoming faxes can be archived. The number of days a fax is stored is configurable.     
Backup     
AES 256-bit encryptionIncoming faxes can be encrypted if they exist as PDF files. AES 256-bit encryption is used. This means that the recipient needs Adobe Acrobat Version 9.x or higher. PGP or X.509 encryption is available for Fax2FTP and Fax2Applications.     
PGP or X.509 encryptionIncoming faxes can be encrypted if they exist as PDF files. AES 256-bit encryption is used. This means that the recipient needs Adobe Acrobat Version 9.x or higher. PGP or X.509 encryption is available for Fax2FTP and Fax2Applications.  
Reporting OptionsHTTPSFTPSMTPFax2EDIMFD connector
Number of sender     
Number of recipient     
Receipt time and date     
Number of pages     
Receipt status     
Transmission status     
Address of sender   
Address of recipient(s)     
Fax ID     
Fax identifier     
Cost center    
Archived until   
File type     
Service     
Detailed progression of receipt over time     
Service OptionsHTTPSFTPSMTPFax2EDIMFD connector
DirSyncUsers of desktop fax services can be automatically imported with the Communication Directory Synchronization (DirSync) feature. User lists are continuously synchronized with your internal directory.
The following parameters can be configured:

  • Maximum number of entries that can be deleted during synchronization
  • Structure of data to be synchronized
  • Ability to overwrite user data
  • Language of reports and error messages
  • Recipients of reports and error messages
  • Ability to attach a file to the report

   
VPN     
Configuration in the EAS Portal     
FormatsHTTPSFTPSMTPFax2EDIMFD connector
PDF     
PDF/A-1b     
TIFF     
TIFFG4     
Single page TIFF     
Barcode typeBarcode onlyOCR incl. barcode
Aztec 
Codabar  
Code 39  
Code 93  
Code 128  
Data Matrix 
EAN 8 and 13  
IATA 2 of 5 
Industrial 2 of 5 
Interleaved 2 of 5 
ITF  
Matrix 2 of 5 
PDF 417  
PostNet 
QR Code 
RSS 
UCC128  
UPC-A 
UPC-E  

 

Output formatBarcode onlyOCR incl. barcode
HTML 
PDF 
PDF/A 
RTF 
TXT  
XLS 
XML  

Services for Sending Faxes (Outbound)

Send a fax from any application
or via API

RESTSOAPSMTPFTP

Send business documents from any business application via the Retarus Fax Cloud.
More info
  • Fax directly from business or web applications
  • Easy-to-integrate APIs – REST, SOAP, FTP, SMTP
  • Supports existing legacy applications
  • Fax confirmation via receipt report
  • Save overlays (letterhead templates)
  • Supports transmission priorities and configurable times to the minute
  • Monitors all transmission jobs in real time
  • No usage peaks during batch sending and with large volumes
  • Billing at the system and client level according to cost center
  • Monthly itemized bill
Fax for applications and APIS for developers

Fax for applications and APIS for developers

Learn more about our Fax APIs

Send faxes through SAP and SAP S/4HANA

BC-SMTPSAP-RFC

Send business documents directly from SAP systems via the Retarus Fax Cloud. SAP-certified interfaces.
More info
The connection is made directly via SAP-RFC or BC-SMTP. The fax service (function call) is continuously available and registered in the SAP system. Intervals for transmission are configured (e.g., every two minutes). If fax jobs exist, the function call is used to transmit them to the Retarus Global Delivery Network. Once received, the jobs are optimized for transmission by Retarus and immediately sent in accordance with SAP priorities. The fax status is send back to the corresponding SAP system with the document ID.

  • Fax from all SAP systems/modules (SAP ERP, SAP S/4HANA, SAP Business ByDesign, etc.)
  • Supports scenarios with a SAP router and load balancing groups
  • Supports SAP priorities
  • Implemented without modifying the SAP system
  • No usage peaks during batch sending and with large volumes
  • Billing at the system and client level according to cost center
  • Monthly itemized bill

Both sending and receiving faxes with SAP systems is possible using the same interface. Incoming faxes are sent to you as PDF documents with the sender’s number and are available in the SAP Workplace.

Fax for SAP and SAP S/4HANA

Fax for SAP and SAP S/4HANA

Send a fax from any email client

SMTP

With Retarus’ email to fax services, faxes can be sent from any email client and any application.
More info
  • Fax from any email client and any application
  • Support for mixed addressing of faxes and emails
  • Receive fax confirmations via email in the sender’s selected language
  • Feature control via commands in the subject line
  • Usage permissions and user profiles
  • Automatic user synchronization with your active directory
  • Supports cloud services such as Office 365 and Google Apps for Business
  • Option: Microsoft-certified Exchange integration
  • Option: HCL Notes and Domino integration (no interference with server tasks, no modifications to the email template)

send email to fax with any email client

Email to Fax

Send faxes with any Windows application

Fax documents from any Windows application, for example, from Microsoft Office.
More info
  • Fax directly from your Windows desktop
  • Fax from Microsoft Office
  • Fax from any Windows application (e.g., CRM system)
  • Supports mail merge functionality in Microsoft Word for personalized faxes
  • Immediate fax confirmation and transmission report
  • Transmission date and time is selectable
  • Customized blacklists

Fax for Windows applications

Fax for Windows applications

Download Faxolution for Windows Setup // 10 MB // Version 3.8.010 // May 19, 2020

What’s new:

  • Improved service availability. Now it is possible to choose a preferred data center for fax job processing.
  • New and separate RTF editor for cover sheets.
  • Support of new and more secure encryption protocols for the communication with Retarus.
  • Automatic printer driver updates are now possible only with the appropriate user privileges.

Send a fax from any web browser

BROWSER

Retarus WebExpress lets you create fax communications, templates, blacklists und distribution lists easily via your web browser. It is designed to mirror your workflow, meaning you can send communications in an instant.
More info
  • Sending fax campaigns
  • Centralized admin, hierarchical user rights
  • Centralized management of distribution lists, black lists and templates
  • Supported file formats: BMP, DOC(X), GIF, JPG, PDF, PNG, PPT(X), TIF, TXT, XLS(X)
  • Synchronization with national blacklists, such as the Robinson lists of BITKOM and ECOFAX
  • Never busy technology for delivery rates up to 100% and error-free delivery
  • Optional configuration of a CSID
  • Personalization in the fax header and fax text
  • Pixel-precise positioning of personalization fields using Drag’n’Drop
  • Response elements can be configured for recipients
  • Send faxes to different recipients at the same fax number
  • Possible fax resolutions: Low and high
  • Supported paper formats: DIN A4, US letter
  • 18 fonts, including two barcode fonts

All technical specifications of Retarus WebExpress ›

Cloud Fax Functions Overview – Sending Faxes

Functions Fax OutboundFTPSOAPRESTSMTPBC-SMTPSAP-RFC
Alternative number per recipient  
Personalized cover page     
Selectable resolution (low or high)      
Selectable paper size (A4, US letter)      
Individual CSID can be defined      
Transmission can be assigned a priority (normal, high)      
Customizable header      
Overlay for customized header/footer    
Customizable cover pages    
Transmission date and time is selectable     
Transmission deadlines can be defined  
Recipient time zone is selectable  
Distribution lists can be used 
Cost centers      
Reference information      
Fax source (entire page/attachment only)  
Ability to omit empty pages  
Reporting OptionsFTPSOAPRESTSMTPBC-SMTPSAP-RFC
API queries   
Status report via email    
Status callback via HTTP  
Status report as file 
Status report incl. TIFF file  
Report email format (HTML, SAP)  
Customizable report templates  
Ability to add comments to report email  
Report email languagesStandard report email languages:

  • German
  • English
  • French
  • Italian
  • Polish
  • Spanish
  • Portuguese

  

 

Report informationFTPSOAPRESTSMTPBC-SMTPSAP-RFC
Numbers that received faxes      
Personalization information  
Cost centers      
Reference information      
Status      
Status details      
Start date and time of entire job  
End date and time of single transmission      
End date and time of entire job   
Duration of fax transmission    
Identifier of receiving fax machine      
Service OptionsFTPSOAPRESTSMTPBC-SMTPSAP-RFC
DirSyncUsers of desktop fax services can be automatically imported with the Communication Directory Synchronization (DirSync) feature. User lists are continuously synchronized with your internal directory. The following parameters can be configured:

  • Maximum number of entries that can be deleted during synchronization
  • Structure of data to be synchronized
  • Ability to overwrite user data
  • Language of reports and error messages
  • Recipients of reports and error messages
  • Ability to attach a file to the report

 
VPN connection      
Archiving      
Configuration in the EAS Portal     
Character setsFTPSOAPRESTSMTPBC-SMTPSAP-RFC
ISO 8859-1      
US-ASCII      
UTF-8     
UTF-16    
UTF-16BE    
UTF-16LE    
FormatsFTPSOAPRESTSMTPBC-SMTPSAP-RFC
BMP     
CSS 
CSV   
DOC     
DOCX     
GIF     
HTML    
JPEG   
JPG     
PCL   
PDF      
PNG    
PPT  
PPTX  
PS   
RTF    
SNP 
TIF      
TIFF      
TXT     
WRI 
XLS     
XLSX