Configuring Zoho as Your SMTP Provider
Overview
SMTP (Simple Mail Transfer Protocol) ensures reliable delivery of emails sent from your CRM. Configuring Zoho Mail as your SMTP provider helps maintain consistent outbound message delivery. This article provides the correct outgoing server settings for both personal Zoho accounts and domain-based organization accounts, along with common configuration considerations.
Outgoing Server Settings for Personal Email Users
For personal Zoho accounts with addresses like username@zoho.com, use the following settings:
- Outgoing Server Name: smtp.zoho.com
- Port: 465 with SSL or 587 with TLS
- Require Authentication: Yes
Outgoing Server Settings for Domain-Based Organizations
For organization accounts with domain-based addresses like you@yourdomain.com, use these settings:
- Outgoing Server Name: smtppro.zoho.com
- Port: 465 with SSL or 587 with TLS
- Require Authentication: Yes
- Username: Your Zoho username or full Zoho Mail address (e.g., you@yourdomain.com)
- Email Address: Your Zoho Mail address (e.g., you@yourdomain.com)
- Password: Your Zoho account password. If two-factor authentication is enabled, you must generate and use an application-specific password instead.
Frequently Asked Questions
Which server should I use: smtp.zoho.com or smtppro.zoho.com?
Use smtp.zoho.com for personal @zoho.com addresses. Use smtppro.zoho.com for custom domain addresses hosted with Zoho.
Should I use port 465 or port 587?
Both ports are valid. Port 465 uses SSL, while port 587 uses TLS. If one fails to connect, try the other, as the issue may be related to firewall or network restrictions.
Do I need an app-specific password?
Only if two-factor authentication is enabled on your Zoho account. In that case, generate an application-specific password and use it in place of your regular password.
Can I use a free personal Zoho address as my SMTP sender?
While you can connect it, sending high volumes of automated or bulk mail from a free personal address may encounter provider sending limits or deliverability issues more frequently than domain-based accounts.
Are there sending limits with Zoho SMTP?
Yes, Zoho enforces daily sending limits that vary by plan. Check your Zoho Mail plan details if you plan to send large volumes of email.
Can I use a Zoho Mail alias as my sender address?
Generally, yes, provided the alias is verified in your Zoho account. Authenticate using your primary Zoho credentials and set the alias as the visible sender address.