Re: phpmailer send() always return true even the emailaddress is invalid
| From: | Ben Dunlap | Date: | Thu, 27 Aug 2009 19:28:12 +0000 |
| Subject: | Re: phpmailer send() always return true even the emailaddress is invalid | ||
| References: | 1 2 3 4 5 6 7 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-297389@lists.php.net to get a copy of this message | ||
> The second problem is that it still forces the originating SMTP server
> to pass on the 5xx error as a bounce message to the originator.
Yeah, I guess this would be a problem in cases where the originating
server is an open relay that's being exploited by a spammer. I wonder
what proportion of spam is sent in this manner -- and and how much, on
the other hand, comes from a direct SMTP conversation between a
malicious client and the MX server of the recipient's domain.
Ben