Validating multiple email addresses
IPv6 represents an evolution of the IP, but it will coexist with IPv4 in the future. Each number of the address, written in decimal as four numbers separated by periods, can be anything from zero to 255.IPv6 uses 128-bit numeric addresses that are written in hexadecimal and separated by colons (example: 3ffe:1293:9:f8ff:feef) No. The owner of the email address will receive no message or notification regarding the email validation process and will not be aware a validation has been carried out.We understand how frustrating and time-consuming it can be to send messages to invalid emails and that’s why we built the email verification tool to help you ascertain the validity of email addresses before you send your messages.Our free, accurate and incredibly fast tool checks the username and email address to see if the email actually exists.
Writing one huge regexp is going to be very difficult and a maintenance nightmare, I suspect. For example, most TLDs are now using Unicode domain names, which are quite common in Europe.
For instance, here's one option using a regular expression: FUNCTION val_email_string (p_email IN VARCHAR2 ,p_separator IN VARCHAR2 DEFAULT ',') RETURN VARCHAR2 IS lt_emails apex_application_global.vc_arr2; lb_valid BOOLEAN DEFAULT TRUE; ln_error PLS_INTEGER; BEGIN -- split string into separate addresses lt_emails := apex_util.string_to_table (p_string = FOR i IN 1..lt_emails.