10 Email Hosting Providers in Singapore (2026)

The right email host depends on the apps your team already uses and how much mail you keep. Most Singapore businesses choose between Google Workspace and Microsoft 365, which bundle email with documents and meetings, or standalone mailboxes from Zoho Mail or a local hosting company.

Below are 10 providers that offer business email in Singapore, with the details that actually differ between them and a plain guide to moving your email safely. We design and build websites at JIN Design; we do not sell email hosting, so nobody here is ranked or paid to appear.

Last checked: October 2026, on each provider's own website. Listed in alphabetical order.

Which is the best email hosting provider in Singapore for you?

• You already use Google or Microsoft apps: Google Workspace, Microsoft 365
• Standalone mailboxes on your own domain: Zoho Mail, CLDY, Exabytes, ReadySpace
• Mail kept in a Singapore data centre (stated by the provider): Casbay, Zoho Mail
• Many light users, or large mailboxes: SecureAX, Casbay
• A suite bought and supported locally, with migration help: Oryon, SecureAX, Exabytes
• Email with chat and meetings, or self-hosted: IceWarp

The 10 email hosting providers at a glance

Provider	Website	Email platform	Singapore data centre	Migration help	Pricing on site
Casbay	casbay.com.sg	SmarterMail	Yes (stated)	Not stated	Yes
CLDY	cldy.com/sg	CLDY platform, managed Microsoft 365	Not stated	Yes, free	Yes
Exabytes	exabytes.sg	SmarterMail; resells suites	Not stated	Not stated	Yes
Google Workspace	workspace.google.com	Gmail	Not stated	Self-serve tools	Yes (SGD)
IceWarp	icewarp.com.sg	IceWarp	Not stated	Yes, managed	Yes
Microsoft 365	microsoft.com	Exchange and Outlook	Not stated	Self-serve tools	Yes
Oryon	oryon.net	Microsoft 365, Google Workspace	Not stated	Yes, free (limits apply)	Yes (SGD)
ReadySpace	readyspace.com.sg	Not stated	Not stated	Not stated	Yes
SecureAX	secureax.com	Own platform; resells suites	Not stated	Yes, paid or self-migration	Yes
Zoho Mail	zoho.com/mail	Zoho Mail	Yes (stated)	Yes, free tool	Yes

“Not stated” means the provider’s own pages did not say, not that the feature is missing. Ask them directly.

Email hosting providers in Singapore

1. Casbay

A hosting company with a Singapore site whose business email runs on SmarterMail in a Tier III data centre in Singapore.

Casbay’s Business Email Hosting plans use SmarterMail webmail, which gives each user email, contacts, calendars, notes and tasks in the browser and on mobile. Mailbox sizes range from 20 GB to 400 GB per user depending on the plan.

The plans include team workspaces with group chat and video chat, a dedicated IP address and backups, weekly on the entry plan and daily on the others. Support is by ticket around the clock.

Casbay’s email page is one of the few in this list that states where mail is kept: a Tier III certified data centre in Singapore.

Detail	Casbay
Website	casbay.com.sg
Email platform	SmarterMail
Singapore data centre	Yes, stated (Tier III data centre in Singapore)
Storage per mailbox	20 GB to 400 GB per user, by plan
Also offers	Web hosting, VPS and dedicated servers, domains, SSL, office IT support
Pricing published on site	Yes

Good fit for: teams that want mail kept in a Singapore data centre, or need large mailboxes.

2. CLDY

A hosting company with a Singapore site and phone line, selling its own Cloud Mail plans alongside managed Microsoft 365.

CLDY has two plan families on its own mail platform: Cloud Mail with 5 GB per mailbox and Cloud Business Mail with 25 GB per mailbox, with 50 GB and 100 GB options linked from the same page. Plans include SSL-secured webmail, IMAP, POP3 and SMTP, anti-spam and anti-malware filtering.

Support runs around the clock by WhatsApp, email and phone, and the plans come with a 30-day money-back guarantee. Its FAQ says migration from your old provider is free and needs only the old server details and the list of users.

One useful detail: the plan page publishes hourly sending limits and a 25 MB outgoing attachment limit for each plan, so you can check them against how your team sends invoices, quotes or large files.

Detail	CLDY
Website	cldy.com/sg
Email platform	CLDY mail platform (managed Microsoft 365 also offered)
Storage per mailbox	5 GB or 25 GB per mailbox, with 50 GB and 100 GB options
Migration help	Yes, free (per its FAQ)
Also offers	Domains, web and WordPress hosting, managed cloud servers, SSL, anti-spam add-on
Pricing published on site	Yes

Good fit for: small teams that want standalone mailboxes on their own domain with local support.

3. Exabytes

The Singapore arm of a regional hosting group, offering SmarterMail business email and reselling Google Workspace, Microsoft 365 and Lark.

Exabytes Network (Singapore) Pte. Ltd. sells Business Email Hosting on SmarterMail with 25 GB per user. Mail works in Outlook through ActiveSync and EWS, and calendars and contacts sync through CalDAV and CardDAV.

The plans include anti-spam, SSL-secured webmail and team workspaces with group chat, file sharing and video calls for small groups. Messages can be up to 50 MB including attachments, and the page offers a 100-day money-back guarantee.

If you would rather use a big suite, Exabytes also sells Google Workspace, Microsoft 365 and Lark, so you can compare standalone mailboxes and suites with one supplier.

Detail	Exabytes
Website	exabytes.sg
Email platform	SmarterMail (also resells Google Workspace, Microsoft 365, Lark)
Storage per mailbox	25 GB per user
Also offers	Domains, WordPress hosting, VPS and dedicated servers, colocation, SSL, backups
Pricing published on site	Yes

Good fit for: SMEs that want SmarterMail mailboxes, or want to buy a suite through a local reseller.

4. Google Workspace

Google’s business suite: Gmail on your own domain, with Calendar, Meet, Drive, Docs and Sheets.

Every Google Workspace plan includes custom business email in Gmail, plus Calendar, Meet video calls, Chat, Drive and the Docs editors, managed from one admin console. The Singapore pricing page shows prices in SGD, and there is a free trial.

Storage is pooled across your organisation rather than fixed per mailbox: 30 GB per user on Business Starter, 2 TB on Business Standard and 5 TB on Business Plus and Enterprise. A few heavy users can draw on space the rest of the team does not use.

The plans also include Gemini, Google’s AI assistant, inside Gmail and the Docs editors.

Detail	Google Workspace
Website	workspace.google.com
Email platform	Gmail
Storage per mailbox	30 GB to 5 TB pooled per user, by plan
Migration help	Self-serve migration tools in the admin console
Also offers	Calendar, Meet, Drive, Docs, Sheets, Slides, Gemini
Pricing published on site	Yes (SGD)

Good fit for: teams that already use Gmail, Google Docs or Google Meet.

5. IceWarp

An email and collaboration suite with a Singapore site, available in the cloud or installed on your own servers.

IceWarp combines email on your own domain with TeamChat, shared calendars, online documents, file storage and video conferences, including a webinar mode for up to 1,000 attendees. Email storage is 2 GB on Core, 50 GB on Essential and 200 GB on Business, per user.

IceWarp offers a fully managed migration from Microsoft Exchange, Microsoft 365, Google Workspace, Zimbra and others, and a free 30-day trial. Its site lists ISO 27001 and SOC 2 among its certifications.

It is one of the few options here that can also be self-hosted, which suits organisations that want their mail on servers they control.

Detail	IceWarp
Website	icewarp.com.sg
Email platform	IceWarp
Storage per mailbox	2 GB to 200 GB email per user, by plan
Migration help	Yes, managed migration service
Also offers	TeamChat, video conferencing, online documents, desktop suite
Pricing published on site	Yes

Good fit for: businesses that want email, chat and meetings from one provider, or the option to self-host.

6. Microsoft 365

Microsoft’s business plans: Outlook and Exchange email on your own domain, with Teams, OneDrive and the Office apps.

Business Basic, Business Standard and Business Premium all include custom business email on Exchange with spam and malware filtering, a 100 GB primary mailbox and 1 TB of OneDrive storage per user, for up to 300 users. Premium adds a larger archive and extra threat protection.

Business Basic includes the web and mobile versions of Word, Excel, PowerPoint and Outlook. The desktop apps start from Business Standard. Prices are shown on the Singapore site and each plan has a free trial.

Business Premium also adds device management and Defender protection against phishing and malware, which suits teams that handle sensitive client data on laptops and phones.

Detail	Microsoft 365
Website	microsoft.com
Email platform	Exchange and Outlook
Storage per mailbox	100 GB primary mailbox per user
Migration help	Migration tools in the Exchange admin centre
Also offers	Teams, OneDrive, SharePoint, Word, Excel, PowerPoint
Pricing published on site	Yes

Good fit for: teams that work in Outlook, Word and Excel every day.

7. Oryon

A Singapore company that sells and supports Microsoft 365 and Google Workspace, with free email migration on both.

Oryon describes itself as an official Microsoft Solutions Partner and lists Microsoft 365 business plans in SGD, with first-year and renewal rates shown. It can also take over billing from another Microsoft partner. Google Workspace is sold alongside.

Email migration into Microsoft 365 is free, with tenant-to-tenant moves and file migration quoted separately. Its Google Workspace page says its engineers migrate a set number of accounts free of charge.

Support is offered around the clock by live chat, WhatsApp and email, including remote desktop help.

Detail	Oryon
Website	oryon.net
Email platform	Microsoft 365, Google Workspace
Migration help	Yes, free email migration (limits apply)
Also offers	Domains, web and WordPress hosting, backup, endpoint security, email security add-on
Pricing published on site	Yes (SGD, on its Microsoft 365 page)

Good fit for: businesses that want Microsoft 365 or Google Workspace bought, set up and supported locally.

8. ReadySpace

A Singapore cloud provider with an email hosting plan that is also included in its web hosting.

ReadySpace is a Singapore company whose main business is cloud servers, Kubernetes, dedicated and GPU servers. Its Email Hosting plan covers antivirus and spam filtering, SSL/TLS connections, ActiveSync and an MX cluster, plus reputation management for outgoing mail so it is less likely to be blocked.

The base plan lists 3 mailboxes and 3 GB of storage, and email hosting is included with ReadySpace web hosting plans. A separate email security product, SpamExperts, can filter mail for other providers.

Detail	ReadySpace
Website	readyspace.com.sg
Storage per mailbox	3 GB in the base plan (3 mailboxes)
Also offers	Cloud and dedicated servers, Kubernetes, domains, SSL, email security
Pricing published on site	Yes

Good fit for: businesses already running servers or websites with ReadySpace.

9. SecureAX

A Singapore managed IT and cloud provider whose business email is priced by total storage rather than per user.

SecureAX Pte Ltd sells Business Email Hosting in storage blocks from 100 GB to 1 TB. Each mailbox can be set between 5 GB and 50 GB, and the number of mailboxes depends on the block you choose.

Plans include SSL, anti-virus and anti-spam, daily backup and free two-factor authentication. Migration is a paid service per mailbox, or you can move mail yourself using the steps on its page.

A useful option for mixed teams: SecureAX describes a hybrid setup where some users on your domain are on its mailboxes and others on Microsoft 365 or Google Workspace, which it also sells.

Detail	SecureAX
Website	secureax.com
Email platform	SecureAX mail (also sells Microsoft 365, Google Workspace)
Storage per mailbox	5 GB to 50 GB per mailbox, from a shared storage block
Migration help	Yes, paid per mailbox, or self-migration
Also offers	Managed IT, cloud hosting, email archiving, email security gateway, backup
Pricing published on site	Yes

Good fit for: organisations with many light email users, or mixing them with a few Microsoft 365 seats.

10. Zoho Mail

Ad-free business email from Zoho, which has a Singapore office and states data centres in Singapore.

Zoho Mail plans range from Mail Lite with 5 GB or 10 GB per user to Mail Premium with 50 GB, and the Workplace plans add documents and file storage with 30 GB or 100 GB of mail per user. There is a free plan for up to 5 users in some data centres, without IMAP or POP access.

A free migration tool moves email, contacts and calendars from Google Workspace, Microsoft 365 or any IMAP provider, and Zoho says its migration specialists help at no extra charge. The service is ad-free.

Zoho lists primary and secondary data centres in Singapore on its own site. When you sign up, check that your account is created in the Singapore data centre if local storage matters to you.

Detail	Zoho Mail
Website	zoho.com/mail
Email platform	Zoho Mail
Singapore data centre	Yes, stated (Singapore data centres)
Storage per mailbox	5 GB to 100 GB per user, by plan
Migration help	Yes, free migration tool
Also offers	Zoho Workplace, CRM and other business apps
Pricing published on site	Yes

Good fit for: small teams that want a separate mail service, or businesses already using Zoho apps.

What is email hosting, and how is it different from web hosting?

Email hosting runs the mailboxes for addresses on your own domain, such as hello@example.com. The provider stores your mail, filters spam and viruses, and lets you read it in a browser, in Outlook or Apple Mail, or on your phone.

Web hosting is the server that shows your website. Many hosts sell both together, which is fine for a small team, but they are separate services. Your domain’s DNS records decide where each one goes, so you can change your website without touching your email.

If you are unsure where your domain, website and email currently sit, our guide to domains and hosting explains how the pieces fit together.

Which type of email hosting do you need?

Type	How it works	Best for	Things to ask
Bundled with web hosting	Mailboxes come with a shared web hosting plan	A few users who send ordinary volumes of mail	Storage per mailbox, sending limits, what happens to email if you move the website
Business suite	Google Workspace or Microsoft 365: email plus calendar, documents, meetings and storage	Teams that want everything in one account	Which plan includes the apps and storage you need
Standalone hosted mailboxes	A dedicated mail service such as Zoho Mail, SmarterMail or a host’s own platform	Teams that only need email, or many light users	Outlook and mobile support, backups, migration help
Self-hosted	Mail software on your own server or VPS	Organisations with IT staff and strict control needs	Who patches, monitors and backs up the server

For most small and medium businesses, the real choice is between a business suite and standalone mailboxes. Self-hosting needs someone to look after the server every week, and a badly kept mail server is quickly blocked by other providers.

How to choose an email hosting provider

A few of these are easy to miss:

• Storage per mailbox or pooled. Some plans give each user a fixed size; others share one pool across the team. A shared pool suits teams where only a few people keep years of mail.
• Sending limits. Hosted mailboxes usually cap how many emails each user can send per hour or day. If you send invoices or newsletters in batches, check the limit, and use a proper newsletter tool for marketing email.
• Leavers. Ask how you keep a former employee’s mail and forward their address without paying for a full seat.
• Who manages it. Someone needs admin access to add users, reset passwords and update DNS records. Decide who that is before you sign up.

What should you check on a budget email plan?

Lower-priced plans can work well for small teams. Before you choose one, confirm what the plan actually includes:

• the storage per mailbox, and the cost of adding more
• whether IMAP and mobile sync are included, if you use Outlook, Apple Mail or a phone app
• the hourly or daily sending limit and the attachment size limit
• how often mail is backed up, and how long deleted mail can be recovered
• spam and phishing filtering, and two-factor sign-in
• support hours and channels, and whether help with setup or migration costs extra

How do you move your email without downtime?

Moving email is mostly about timing. Done in this order, mail keeps arriving throughout the switch.

1. Lower the TTL. A day before the move, set the TTL on your MX records to a few minutes. Changes then take effect quickly when you switch.
2. Create the new mailboxes. Set up every address, alias and shared mailbox at the new provider and verify your domain with them.
3. Copy your old mail. Use the provider’s migration tool or service to copy existing mail, contacts and calendars across while the old system is still live.
4. Switch the MX records. Replace the old MX records with the new provider’s at your DNS host. New mail starts arriving at the new provider within minutes to hours.
5. Set up SPF, DKIM and DMARC. Add the new provider’s values so your outgoing mail is trusted (see below).
6. Run a final sync. A day or two later, copy anything that arrived at the old server during the switch, reconnect phones and desktop apps, then cancel the old account.

Your DNS settings live wherever your domain’s nameservers point: often your domain registrar, sometimes your web host or a DNS service. If you need to find out where your domain is managed, our list of domain name registrars in Singapore covers the common ones.

SPF, DKIM and DMARC in plain English

These three DNS records prove that email from your domain is genuine. Without them, your mail is more likely to land in spam, and anyone can pretend to send email as your company. Gmail and Yahoo expect them from anyone sending mail in volume.

Record	What it does	Example (yours will differ)
MX	Tells the world which servers receive mail for your domain	example.com MX 10 mx.provider.com
SPF (TXT)	Lists the servers allowed to send mail for your domain	v=spf1 include:_spf.provider.com ~all
DKIM (TXT or CNAME)	Publishes a key that checks the digital signature on each email	A long key from your provider, under a name like selector._domainkey
DMARC (TXT)	Tells receiving servers what to do with mail that fails SPF or DKIM, and where to send reports	v=DMARC1; p=none; rua=mailto:reports@example.com

A few practical points:

• One SPF record only. If you send from several services (your mailboxes, a newsletter tool, your website’s contact form), combine them into a single SPF record.
• Start DMARC gently. Begin with p=none to receive reports, then move to quarantine or reject once you are sure every legitimate sender passes.
• Your website sends email too. Contact forms and online stores often send mail through your domain. Make sure they use an authenticated service that is included in SPF and DKIM, or their messages may not arrive.

Changing your website? Keep your email records

Businesses often lose email during a website move, when the site goes to new hosting or a new DNS provider and the mail records are not copied across.

Before any website move, export or screenshot every DNS record: MX, SPF, DKIM, DMARC and any verification records. After the switch, check that each one is still there and send a test email both ways. Our guide to choosing a website hosting server covers the website side of a move.

Where is your email stored, and does the PDPA matter?

The PDPA does not require email to be stored in Singapore. It does require you to protect personal data, and if data is transferred overseas, to make sure it is protected to a standard comparable to the PDPA.

Some businesses prefer local storage anyway, for client expectations or industry rules. In this list, Casbay and Zoho state Singapore data centres on their own sites. For any provider, ask where your mailboxes and backups are kept and what security certifications apply.

How we chose these providers

Every provider here offers business email on your own domain, has a Singapore presence or a Singapore service, and has a working website that describes its email product clearly enough to compare. Each entry is written only from what the provider’s own website says, and we do not quote prices because they change often. Providers are listed alphabetically, and we re-check this list every quarter.

Your website and your email

We design, build and look after websites, and we do not sell email hosting. Your email can stay with whichever provider suits your team, and your website can change around it.

If you are planning a new website, see our web design service, or our website maintenance plans if you need an existing WordPress site kept updated and secure. Talk to us about your project.