Sending with Zoho Mail

Zoho Mail is popular with small businesses that want email on their own domain, such as you@yourcompany.com. Tesria can send through it, on a paid plan: Zoho’s free plan no longer lets new accounts use other programs to send or read mail.

Before you start

• A Zoho Mail account on a paid plan (or a free account old enough to have kept that access).

• Which server is yours. Zoho has two, and data centers in several regions, each with its own address. The exact one is in Zoho Mail’s settings, under Mail Accounts, in the IMAP and SMTP details. For most accounts on the main data center it is:

  • smtppro.zoho.com: an organization’s account on its own domain (a paid plan).

  • smtp.zoho.com: a personal account.

In Europe the address ends in .eu instead of .com, in India in .in, and so on. Use the one Zoho shows you.

Step 1: Make an application-specific password, if you use two-factor sign-in

With two-factor sign-in on your Zoho account (recommended), other programs need a password of their own. In accounts.zoho.com, choose Security, then App Passwords, then Generate New Password. Name it Tesria and copy it: Zoho shows it only once. Without two-factor sign-in, your Zoho password is what goes in the Password box.

Step 2: Fill in Tesria’s email settings

Choose Admin, then Settings. In the Email section, choose your provider under Provider: that fills in the server for you. Then fill in the rest:

Use your own server’s address from Zoho’s settings in place of smtppro.zoho.com if it differs. Port 587 with STARTTLS works too.

Step 3: Turn it on and send a test

Choose Save mail settings, turn on Send email, then choose Send test email to me and check that it arrived, including in the spam folder. The full walk-through is on Email (SMTP).

If the test fails

• “Relaying Disallowed” means the From address does not belong to the account signing in. Use the account’s own address, or one of its aliases.

• The sign-in is refused. Check the server address against Zoho’s settings (the region matters), and that the password is the application-specific one if two-factor sign-in is on.