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Top Forums UNIX for Beginners Questions & Answers Answers to Frequently Asked Questions Email Antispam Techniques and Email Filtering allowing others with dynamic IPs to use your email service. Post 34335 by Neo on Monday 17th of February 2003 01:56:19 PM
Old 02-17-2003
Thanks Norsk!

That is a great tip! Just the kind of great antispam technique this special topic forum needs. I have never heard of 'POP before SMTP'...

My mother (a grandmother and savvy net user) has been on the net (doing email) since 1992 and now says, for her, the Internet is "not fun anymore' because of the mountains of spam she receives.

I think spam is the number one problem on the net today...... recently I was overseas in an Internet kiosk and spent most of my 'on-line' time deleting a thousand junk message that accumlated over a day in airports and planes.....

Thanks! Neo
 

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Mail::Verify(3pm)					User Contributed Perl Documentation					 Mail::Verify(3pm)

NAME
Mail::Verify - Utility to verify an email address SYNOPSIS
use Mail::Verify; DESCRIPTION
"Mail::Verify" provides a function CheckAddress function for verifying email addresses. First the syntax of the email address is checked, then it verifies that there is at least one valid MX server accepting email for the domain. Using Net::DNS and IO::Socket a list of MX records (or, falling back on a hosts A record) are checked to make sure at least one SMTP server is accepting connections. ERRORS
Here are a list of return codes and what they mean: 0 The email address appears to be valid. 1 No email address was supplied. 2 There is a syntaxical error in the email address. 3 There are no DNS entries for the host in question (no MX records or A records). 4 There are no live SMTP servers accepting connections for this email address. EXAMPLES
This example shows obtaining an email address from a form field and verifying it. use CGI qw/:standard/; use Mail::Verify; my $q = new CGI; [...] my $email = $q->param("emailaddr"); my $email_ck = Mail::Verify::CheckAddress( $email ); if( $email_ck ) { print '<h1>Form input error: Invalid email address.</h1>'; } [...] perl v5.8.8 2002-06-09 Mail::Verify(3pm)
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