SiteGround SMTP settings: mail.yourdomain.com, port 465
SiteGround email SMTP: host mail.yourdomain.com (or your SiteGround server hostname), port 465 SSL, full mailbox address and password. Hourly limits (about 400/hour) and how to configure WordPress.
SiteGround outgoing mail server:
mail.yourdomain.com, port <code>465</code> (SSL/TLS) or <code>587</code> (STARTTLS), username = the full mailbox address, password = the mailbox password from Site Tools.
SiteGround SMTP settings at a glance
| Outgoing (SMTP) host | mail.yourdomain.com — or the server hostname shown in Site Tools → Email → Accounts → Mail Configuration |
|---|---|
| Ports & encryption |
465 — SSL/TLS <em>(recommended)</em>587 — STARTTLS |
| Username | the full mailbox address |
| Password | the mailbox password from Site Tools |
| Authentication | Site Tools → Email → Accounts → the kebab menu → Mail Configuration lists the exact values, including the hostname with a valid certificate. |
How to set up SiteGround SMTP
- Site Tools → Email → Accounts → create the mailbox → Mail Configuration.
- App settings: host mail.yourdomain.com (or the listed hostname), port 465 SSL/TLS, username = full address, password = mailbox password.
Sending limits
- SiteGround documents hourly limits per account (shared plans around 400 emails per hour) and daily caps; marketing mail is not allowed.
Things that catch people out
- SiteGround SMTP plugin defaults are fine for small sites; WooCommerce stores hit the hourly cap on sale days.
Common SiteGround SMTP errors
| Server reply | Meaning | Fix |
|---|---|---|
550 Too many emails per hour | Hourly cap. | Relay site mail through a sending service. |
More codes: 535 authentication failed, 550 relay denied, 554 rejected as spam, connection timed out — or all SMTP error codes.
When SiteGround 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 SiteGround nowRelated settings
SiteGround SMTP — questions
mail.yourdomain.com (or the hostname shown under Mail Configuration in Site Tools) on port 465 with SSL.
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