# Letsencrypt setup with multiple domains on same server

**URL:** https://discourse.roots.io/t/letsencrypt-setup-with-multiple-domains-on-same-server/7133
**Category:** trellis
**Created:** 2016-07-06T07:11:43Z
**Posts:** 23
**Showing post:** 16 of 23

## Post 16 by @cfx — 2016-07-15T17:23:27Z

So you’re using multisite with domain mapping? That’s a pretty important detail you left out.

Please check this thread: [Let's Encrypt issue when adding new domain to multisite](https://discourse.roots.io/t/lets-encrypt-issue-when-adding-new-domain-to-multisite/7021)

Also, can we see your `wordpress_sites.yml`? You can mask domain names if you like.

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