Chapter 11 Regex: typo in the code example. Top-level domain validation expression · Issue #277 · csev/py4e · GitHub
![regex - Email Sieve to Target emails with a specific pattern in a catchall domain address - Server Fault regex - Email Sieve to Target emails with a specific pattern in a catchall domain address - Server Fault](https://i.stack.imgur.com/9JuT9.png)
regex - Email Sieve to Target emails with a specific pattern in a catchall domain address - Server Fault
Regex for extended top level domain email addresses · Issue #2456 · symphonycms/symphonycms · GitHub
![Tip of the Day: How to Extract Domain Names from Email Addresses using Regular Expressions (RegEX) - Cloud Insidr Tip of the Day: How to Extract Domain Names from Email Addresses using Regular Expressions (RegEX) - Cloud Insidr](https://cloudinsidr.com/content/wp-content/uploads/2015/11/regex_for_postfix_antispam.png)