For security reasons, it is recommended for the user to sanitize this parameter to avoid adding unwanted parameters to the shell command.
Since can not allow such characters, so in programs where the use of such characters is required, alternative means of sending emails (such as using a framework or a library) is recommended.
This function opens and closes an SMTP socket for each email, which is not very efficient.
For the sending of large amounts of email, see the » PEAR:: Mail, and » PEAR:: Mail_Queue packages. The code now looks clean and straight forward.(Just compare it with the manual's example ;-) ) I have tried many online tutorials to get mail() function working in windows, until i stumbled upon this website really boils down to changing few directives in and Changes required in sendmail.inismtp_server=smtp.gmail.comsmtp_port=587error_logf[email protected]gmail[email protected]Changes required in SMTP=smtp.gmail.comsmtp_port=587sendmail_from = [email protected]_path = "\"C:\xampp\sendmail\sendmail.exe\" -t";sendmail_path = "C:\xampp\mailtodisk\mailtodisk.exe" I was having delivery issues from this function to Gmail, Yahoo, AOL, etc.
You can write clean PHP code while creating the headers correctly. I used the notes here to figure that you need to be setting your Return-Path to a valid email to catch bounces.
There are two extra delivery gotchas on top of that:1) The domain in the email used in the -f option in the sendmail parameter or in the mail() extra parameters field, needs to have a valid SPF record for the domain (in DNS as a "TXT" record type for sure and add an additional "SPF" type record if possible). That's header field being used for spam checks.2) You should also use a domain key or DKIM.
String to be inserted at the end of the email header.
This is typically used to add extra headers (From, Cc, and Bcc).
Multiple extra headers should be separated with a CRLF (\r\n).
If outside data are used to compose this header, the data should be sanitized so that no unwanted headers could be injected.
Note: If messages are not received, try using a LF (\n) only.