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Top Forums UNIX for Advanced & Expert Users Too many hops error in sendmail Post 302333782 by robsonde on Tuesday 14th of July 2009 04:45:00 AM
Old 07-14-2009
the hop count stops email from hopping around forever...

it depends on who is sending you mail but a hop limit of 20 is a good starting number.

set it to 30, this should let in 99% of valid mail but still stop a mail from hopping around forever.
 

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MB_SEND_MAIL(3) 							 1							   MB_SEND_MAIL(3)

mb_send_mail - Send encoded mail

SYNOPSIS
bool mb_send_mail NULL NULL (string $to, string $subject, string $message, [string $additional_headers], [string $additional_parame- ter]) DESCRIPTION
Sends email. Headers and messages are converted and encoded according to the mb_language(3) setting. It's a wrapper function for mail(3), so see also mail(3) for details. PARAMETERS
o $to - The mail addresses being sent to. Multiple recipients may be specified by putting a comma between each address in $to. This parameter is not automatically encoded. o $subject - The subject of the mail. o $message - The message of the mail. o $additional_headers (optional) - 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 ( ). Note When sending mail, the mail must contain a From header. This can be set with the $additional_headers parameter, or a default can be set in php.ini. Failing to do this will result in an error message similar to Warning: mail(): "sendmail_from" not set in php.ini or custom "From:" header missing. The From header sets also Return-Path under Windows. Note If messages are not received, try using a LF ( ) only. Some Unix mail transfer agents (most notably qmail) replace LF by CRLF automatically (which leads to doubling CR if CRLF is used). This should be a last resort, as it does not comply with RFC 2822. o $additional_parameter -$additional_parameter is a MTA command line parameter. It is useful when setting the correct Return-Path header when using send- mail. RETURN VALUES
Returns TRUE on success or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.0.0 | | | | | | | The Content-Type and Content-Transfer-Encoding | | | headers may be redefined as of PHP 5.0.0. Before | | | this time, the values defined by mb_language(3) | | | are always used. | | | | +--------+---------------------------------------------------+ SEE ALSO
mail(3), mb_encode_mimeheader(3), mb_language(3). PHP Documentation Group MB_SEND_MAIL(3)
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