Searches DNS for MX records corresponding to
hostname
.
hostname
The Internet host name.
mxhosts
A list of the MX records found is placed into the array
mxhosts
.
weight
If the weight
array is given, it will be filled
with the weight information gathered.
Returns TRUE if any records are found; returns FALSE if no records were found or if an error occurred.
Note: This function should not be used for the purposes of address verification. Only the mailexchangers found in DNS are returned, however, according to RFC 2821 when no mail exchangers are listed,
hostname
itself should be used as the only mail exchanger with a priority of 0.
checkdnsrr() |
dns_get_record() |
gethostbyname() |
gethostbynamel() |
gethostbyaddr() |
the named(8) manual page |