Comparison · generated on request
User Domain Whitelist vs ZDN Whitelist Outgoing Email
Both plugins as this registry currently observes them. Figures come from the same daily snapshot, so they are directly comparable, which two separate wordpress.org pages, read minutes apart, are not.
| User Domain Whitelist | ZDN Whitelist Outgoing Email | |
|---|---|---|
| What it does | The User Domain Whitelist/Blacklist plugin limits user registration to only registrants with an email address from the domain white list provided by t … | Restrict outgoing emails to a whitelist and log every message. Non-whitelisted recipients are replaced with a fallback address. Ideal for dev/staging. |
| Active installs | 300+ | fewer than 10 |
| Rating | 4.1★ (9) | — |
| Last release | 8.5 years ago | 2 months ago |
| Current owner | Warren Harrison | cuongquach |
| Added to directory | 22 Aug 2009 | 14 Jul 2026 |
| Tested up to | WP — | WP 7.0.4 |
| Requires PHP | false | 7.4 |
Install figures are rounded by WordPress.org to one significant digit, so a gap smaller than a band step is not a difference. Nothing here ranks the two plugins or recommends either, and no link on this page earns anything.
Why this page is not in search results
There are roughly 1.8 billion possible pairs of WordPress plugins. Generating them would be scaled content abuse, so this registry does not: a comparison renders for anyone who asks for it, and is offered to search engines only once 25 different people have asked for that same pair within 60 days. This one has been requested by 0. Until it crosses, the page works normally but stays out of the index.
Records: User Domain Whitelist · ZDN Whitelist Outgoing Email