Set up an external email provider

You can host your website with Omega Digital and use a separate email provider. Use the MX, SPF and DKIM records supplied in that provider’s setup instructions. The examples below show common record formats.

Before you edit anything

Create your mailbox at the external provider first. Verify you can send and receive between users inside their system. Only then swap MX. Otherwise incoming mail bounces during the window where the provider doesn't recognize the domain yet.

Google Workspace

# MX records
Priority   Host   Value
1          @      ASPMX.L.GOOGLE.COM.
5          @      ALT1.ASPMX.L.GOOGLE.COM.
5          @      ALT2.ASPMX.L.GOOGLE.COM.
10         @      ALT3.ASPMX.L.GOOGLE.COM.
10         @      ALT4.ASPMX.L.GOOGLE.COM.

# SPF (TXT record on root)
@   TXT   "v=spf1 include:_spf.google.com ~all"

# DKIM: generate from Admin Console → Apps → Gmail → Authenticate Email
# Add the resulting TXT record at google._domainkey.yourdomain.com

Microsoft 365

# MX record (single)
Priority   Host   Value
0          @      yourdomain-com.mail.protection.outlook.com.

# SPF
@   TXT   "v=spf1 include:spf.protection.outlook.com -all"

# Autodiscover for mail clients
autodiscover   CNAME   autodiscover.outlook.com.

# DKIM: enable in Microsoft Defender → Policies → Email authentication
# Add CNAMEs for selector1._domainkey and selector2._domainkey as shown there

Zoho Mail

# MX records
Priority   Host   Value
10         @      mx.zoho.com.
20         @      mx2.zoho.com.
50         @      mx3.zoho.com.

# SPF
@   TXT   "v=spf1 include:zoho.com ~all"

# DKIM: generate from Zoho Admin → Email Deliverability → DKIM
# Add the TXT at the provided selector, e.g. zoho._domainkey.yourdomain.com

Fastmail

# MX records
Priority   Host   Value
10         @      in1-smtp.messagingengine.com.
20         @      in2-smtp.messagingengine.com.

# SPF
@   TXT   "v=spf1 include:spf.messagingengine.com ?all"

# DKIM (three CNAMEs)
fm1._domainkey   CNAME   fm1.yourdomain.com.dkim.fmhosted.com.
fm2._domainkey   CNAME   fm2.yourdomain.com.dkim.fmhosted.com.
fm3._domainkey   CNAME   fm3.yourdomain.com.dkim.fmhosted.com.

Where to edit records

If your nameservers point to Omega Digital, edit records in cPanel → Zone Editor. Delete the existing MX (pointing to mail.yourdomain.com) before adding the new ones. If your nameservers are at Cloudflare or your registrar, edit there instead.

Turn off local mail delivery on the server

cPanel may continue delivering mail locally after an MX change. Check the domain’s Email Routing setting:

1. In cPanel, open Email Routing under the Email section.
2. Select your domain.
3. Change the routing from Local Mail Exchanger (or Automatically Detect) to Remote Mail Exchanger.
4. Save.

Verify the new records

# MX should show the external provider
dig +short MX yourdomain.com

# SPF should include the external provider
dig +short TXT yourdomain.com | grep spf

# DKIM check (replace selector)
dig +short TXT google._domainkey.yourdomain.com

# Send a test email, then check headers:
# dkim=pass, spf=pass, dmarc=pass

Common issues

• Old MX records. Remove records for the previous provider when switching email delivery.
• Local mail routing. Set Remote Mail Exchanger when an external provider handles email for the domain.
• SPF hard -all during testing. Use ~all (softfail) while you verify, then switch to -all once delivery is confirmed.
• Multiple SPF records. Only one SPF TXT record is allowed. If you merge providers, combine the includes into one record.

Contact support

Email [email protected] with your domain and the name of your new email provider.