Re: smtp mail question
| From: | John Black | Date: | Fri, 30 Oct 2009 15:37:54 +0000 |
| Subject: | Re: smtp mail question | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-299541@lists.php.net to get a copy of this message | ||
Al wrote:
Anyone see a problem if I login into the smtp server with Username different than the Return-Path? It seems to work OK; but, I know from experience using the mail servers that increasingly everything must be exactly right to prevent recipient mail servers from rejecting emails.All the email servers I have worked with only care about the proper authentication credentials and accept any valid email address for From: Reply-to and so on. Free services, like Googlemail.com, may differ. The receiving server on the other hand will usually do a domain validation of the From: field to ensure that the domain exists, validate the SPF record and do a few other anti spam tricks. -- John