Email Hosting in Singapore for Your Business

Tired of the headaches of email? Oryon ProMail provides reliable, secure, and fully managed email. Let us take care of your email so you can focus on your business. Always up and accessible from mobile devices and popular email clients like Outlook. Try Oryon ProMail today!

  • Secure IMAP
  • Spam & virus protection
  • Large 25 GB mailboxes
  • 50 MB attachments
  • 100% Uptime Guarantee
  • Data redundancy
  • Message-filtering
  • Incoming Spam Control
Email Service


All prices in Singapore Dollars (SGD) Nett. Email migration is free of charge. Featured on Cyber Security Agency of Singapore ( CSA ) website.


$ 90 /year

$30 Per Additional User Yearly

Up to 3 Users
Suitable for companies with 3 to 2000 users
25 GB Storage Per User
100% Uptime Guarantee
Premium spam & virus protection
Free and easy migrations
Works with Outlook and mobile
Basic Phishing Protection


  • Secure IMAP (for Outlook & Mobile)
  • Premium spam & virus protection
  • Unlimited aliases and group lists
  • Large 25 GB mailboxes
  • Domain aliases
  • 50 MB attachments
  • 100% Uptime Guarantee
  • Data redundancy in 3 different datacenters
  • 24×7 Oryon Assist Support
  • Free and easy mail migrations
  • Web-based, anywhere webmail access
  • Shared calendar on webmail
    Company directory (GAL)
  • Advanced message-filtering
  • Instant Messaging
  • Out of office auto-responder
  • Attach files from Dropbox
  • Tasks and notes
  • Email “undelete” from trash within 14 days
  • Multiple identities and signatures
  • Email forwarding

Premium Email Spam and Virus Protection

Our spam and virus filtering is handled in two stages: blocked email, and filtered email. Blocked email ensures you never see those messages in your mailbox. If we can’t block it, email filtering is used to identify spam and put it in your spam folder.

Blocked Email

Oryon uses several industry-best practice techniques to block email spam coming from known disreputable sources. This includes email that we know, with a high degree of certainty, is not from a legitimate service. It covers everything from compromised servers to “spam blaster” business email setup services that send unsolicited spam across the internet. These techniques include the use of IP blocklists provided by reputable business email setup services that are well-known throughout the email industry, as well as blocking emails with attachment types known to exploit end-user computers.

Filtered Email

If mail passes the blocked email checks, we apply advanced content filtering to verify whether it is considered spam. Content filtering combines many techniques to analyze email structure and content, and create key indicators that identify patterns in business email service. These indicators are combined with industry-wide feedback from email providers across the internet about reported spam, phishing, and viruses. The end result is an accurate, adaptive, and evolving content filtering system with business email setup service that is highly effective at removing spam with business email setup techniques.

Frequently Asked Questions

ProMail Email Hosting is highly scalable and can support everything from a one-person business to companies with tens of thousands of users. We have customer companies in excess in 5000 users.

The maximum size for an attachment is 50 MB.

The main difference between IMAP and POP is that IMAP works with email directly on the server, while POP fetches mail from the server and works with it on your local computer.

Sending Limit: 10,000 recipients/day

Daily limits apply to a 24-hour calendar day (00:00:00 until 23:59:59) and restrict the total number of recipients to which a user can send messages in this period.

Users are limited to 10,000 total recipients per 24-hour period. Counting recipients is different than counting messages. For example, sending 100 emails that each have 100 recipients is counted the same as sending 10,000 emails that each have a single recipient.

We do not allow spam and bulk email on your account. If we found anything suspicious on it, our spam filter automatically block the email account and send notification to your registered email ID for further actions.

Receiving limit: 400 messages/10 minutes

If a mailbox receives over 400 messages in a 10-minute period, any additional messages in that period will be deferred. Email senders will typically retry a deferred message at least once, possibly resulting in the message still being delivered after a short delay.

Mailboxes designated to receive high-volume automated email have an increased potential of being impacted by this limit. For example, mailboxes set to receive from devices or programs that send diagnostic information via email, and systems that generate high volumes of email from services like CRMs and support ticketing systems.

Migration times vary per customer. Some migrate in hours and others migrate in days or weeks. The migration process is a partnership between you and the migration team. Consider your availability and resources when planning your migration as they will be needed for the testing phase of the migration and will impact the overall timeline of the transition.

We use a combination of automated tools and support experts to perform the migration. At each step of the migration, we stay in close contact with your team to help you get a successful outcome.

The main differences are the storage capacity per account, spam and virus filter capabilities, and email connection speed. ProMail relies mainly on IMAP connection, while Microsoft Office 365 and Google Workspace offer faster connection speeds and the ability to sync contacts and calendars to the servers.

After you submit your migration request, our email migration experts will discuss available approaches with you, depending on the configuration of your source server and your migration type. Our team will require that you provide the source server address/URL and all usernames and passwords for the mailboxes. A spreadsheet will be sent to you for this step in the process.

Users can continue to access and use their mailbox normally. However, we strongly recommend that passwords not be reset during the migration.

Yes, if you go with ProMail Email Hosting package with Oryon, you can manage your email account via browser as well as email clients such us Outlook, thunderbird, etc. If you are facing any issues while configuring the email account or sending/receiving emails, you may contact our live chat or email, phone support. We will take over your PC via remotely and resolve this issue with instantly.

Yes, with a minimum of 3 email users on ProMail Email Hosting. You may contact Oryon to increase the email user’s limit at any time. It will be automatically updated on your account and the system will generate the invoice for the difference.

Yes, you can get and restore the deleted emails from trash folder within 14 days.

ProMail Email Hosting allows for 25 GB per user. If it exceeds, we recommend you backup/archive the email account via Outlook to store in on the computer locally and clear the spam/unwanted emails manually.

Note: We cannot make exceptions for any file type listed for any reason.
View the full list of blocked attachment types

File typeFull file name
adeAccess Project Extension (Microsoft)
adpAccess Project (Microsoft)
appExecutable Application
aspActive Server Page
vaspxASP.NET Web Page
asxAdvanced Stream Redirector
basBASIC Source Code
batBatch Processing
cerInternet Security Certificate File
chmCompiled HTML Help
cmdDOS CP/M Command File Command File for Windows NT
cntIndex file for Windows help files
cplWindows Control Panel Extension (Microsoft)
crtCertificate File
cshcsh Script
derX509 Certificate
exeExecutable File
fxpvFoxPro Compiled Source (Microsoft)
gadgetWindows Vista gadget
hlpWindows Help File
hpjMicrosoft Help Project File
htaHypertext Application
htcHTML Component File
infInformation or Setup File
insIIS Internet Communications Settings (Microsoft)
ispIIS Internet Service Provider Settings (Microsoft)
itsInternet Document Set Internet Translation
jsJavaScript Source Code
jseJScript Encoded Script File
kshUNIX Shell Script
libStatic DLL Library Information File
lnkWindows Shortcut File
madAccess Module Shortcut (Microsoft)
mafAccess (Microsoft)
magAccess Diagram Shortcut (Microsoft)
mamAccess Macro Shortcut (Microsoft)
maqAccess Query Shortcut (Microsoft)
marAccess Report Shortcut (Microsoft)
masAccess Stored Procedures (Microsoft)
matAccess Table Shortcut (Microsoft)
mauAccess Shortcut Function
mavAccess View Shortcut (Microsoft)
mawAccess Data Access Page (Microsoft)
mdaAccess Add-in MDA Access 2 Workgroup (Microsoft)
mdbAccess Application MDB Access Database (Microsoft)
mdeAccess MDE Database File (Microsoft)
mdtAccess Add-in Data (Microsoft)
mdwAccess Workgroup Information (Microsoft)
mdzAccess Wizard Template (Microsoft)
mscMicrosoft Management Console Snap-in Control File (Microsoft)
mhtWeb Page Archive File
mhtmlWeb Page Archive File
msh3D Modeling File
msiWindows Installer File (Microsoft)
mspWindows Installer Patch
mstWindows SDK Setup Transform Script
msh1Microsoft Help File
msh2Microsoft Help File
mshmxlMicrosoft Help File
msh1xmlMicrosoft Help File
msh2xmlMicrosoft Help File
opsOffice Profile Settings File
osdOpen Software Description File
pcdVisual Test (Microsoft)
pifWindows Program Information File (Microsoft)
plgAston Shell Plug-in
prfWindows System File
prgProgram File
pstMicrosoft Exchange Address Book File, Outlook Personal Folder File (Microsoft)
regRegistration Information or Key for Windows 95 or 98 Registry Data File
scfWindows Explorer Command
scrWindows Screen Saver
sctWindows Script Component FoxPro Screen (Microsoft)
shbWindows Shortcut into a Document
shsShell Scrap Object File
sysWindows System File
ps1Windows PowerShell Script
ps1xmWindows PowerShell Script
ps2Windows PowerShell Script
ps2xmlWindows PowerShell Script
psc1Windows PowerShell Script
psc2Windows PowerShell Script
tmpTemporary File/Folder
urlInternet Location
vbVBScript File or Any Visual Basic Source
vbeVBScript Encoded Script File
vbsVBScript Script File Visual Basic for Applications Script
vpbVisual Basic Project File
vsmacrosVisual Studio .NET Binary-based Macro Project (Microsoft)
vssVisio Stencil (Microsoft)
vstVisio Template (Microsoft)
vswVisio Workspace File (Microsoft)
vxdWindows Virtual Device Driver
wsWindows Script File
wscWindows Script Component
wsfWindows Script File
wshWindows Script Host Settings File
xnkExchange Shortcut
xmlExtensible Markup Language

Our Support Team who is available 24x7x365 will be happy to answer any specific questions you may have on the live chat.

For questions and enquiries related to device setup and administration, please refer to

Need help? Contact our award-winning 24/7 customer service!