Hostinger SMTP settings: smtp.hostinger.com, port 465 or 587
Hostinger business email outgoing server: smtp.hostinger.com, port 465 SSL or 587 STARTTLS, full mailbox address and password. Hostinger Titan mailboxes use smtp.titan.email. Daily limits and the WordPress setup.
Hostinger outgoing mail server:
smtp.hostinger.com, port <code>465</code> (SSL/TLS) or <code>587</code> (STARTTLS), username = the full mailbox address, password = the mailbox password set in hPanel → Emails.
Hostinger SMTP settings at a glance
| Outgoing (SMTP) host | smtp.hostinger.com (Hostinger Email) — smtp.titan.email for Titan mailboxes sold by Hostinger |
|---|---|
| Ports & encryption |
465 — SSL/TLS <em>(recommended)</em>587 — STARTTLS |
| Username | the full mailbox address, e.g. hello@yourdomain.com |
| Password | the mailbox password set in hPanel → Emails |
| Authentication | Create the mailbox first in hPanel → Emails → Email Accounts; the credentials are the mailbox's own. There are no app passwords. |
How to set up Hostinger SMTP
- hPanel → Emails → Email Accounts → create the mailbox and note the password.
- App or WordPress plugin: host smtp.hostinger.com, port 465, SSL/TLS, username = full mailbox, password = mailbox password.
- Check hPanel → Emails → DNS: MX, SPF (include:_spf.mail.hostinger.com) and DKIM must be present for inbox delivery.
Sending limits
- Hostinger documents a daily sending cap per mailbox (in the low thousands) and hourly caps; bulk or marketing mail is against the email terms.
- From must match the mailbox or a configured alias/forwarder.
- Hostinger blocks outbound port 25 from its hosting servers — PHP mail() and scripts must use SMTP on 465/587.
Things that catch people out
- Titan mailboxes (the free "Titan Email" bundled with some plans) use smtp.titan.email, not smtp.hostinger.com.
Common Hostinger SMTP errors
| Server reply | Meaning | Fix |
|---|---|---|
535 5.7.8 Error: authentication failed | Wrong host for the mailbox type, or wrong password. | Check whether the mailbox is Hostinger Email or Titan. |
550 5.7.1 Daily sending limit exceeded | Cap reached. | Move notifications/newsletters to a relay. |
More codes: 535 authentication failed, 550 relay denied, 554 rejected as spam, connection timed out — or all SMTP error codes.
When Hostinger is not enough for your app
When a provider caps you or blocks a port, point the same app at QueenSMTP instead: host smtp.queensmtp.com, port 587 (STARTTLS) or 465 (SSL), your SMTP username and password from the dashboard. $5/year plus $0.10 per 1,000 emails, 100 free a day to test.
Get SMTP credentials — free to test Test Hostinger nowRelated settings
Hostinger SMTP — questions
smtp.hostinger.com on port 465 (SSL) or 587 (STARTTLS) with the full mailbox address and password. Titan mailboxes use smtp.titan.email.
Hostinger blocks port 25 and PHP mail() is unreliable. Install an SMTP plugin and use smtp.hostinger.com on 465, or an external relay.
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