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.\" ========================================================================
.\"
.IX Title "Net::SSLGlue::SMTP 3pm"
.TH Net::SSLGlue::SMTP 3pm "2022-12-06" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Net::SSLGlue::SMTP \- make Net::SMTP able to use SSL
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 5
\&    use Net::SSLGlue::SMTP;
\&    my $smtp_ssl = Net::SMTP\->new( $host,
\&        SSL => 1,
\&        SSL_ca_path => ...
\&    );
\&
\&    my $smtp_plain = Net::SMTP\->new( $host );
\&    $smtp_plain\->starttls( SSL_ca_path => ... );
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Net::SSLGlue::SMTP extends Net::SMTP so one can either start directly with \s-1SSL\s0
or switch later to \s-1SSL\s0 using the \s-1STARTTLS\s0 command.
.PP
By default it will take care to verify the certificate according to the rules
for \s-1SMTP\s0 implemented in IO::Socket::SSL.
.SH "METHODS"
.IX Header "METHODS"
.IP "new" 4
.IX Item "new"
The method \f(CW\*(C`new\*(C'\fR of Net::SMTP is now able to start directly with \s-1SSL\s0 when
the argument \f(CW\*(C`<SSL =\*(C'\fR 1>> is given. In this case it will not create an
IO::Socket::INET object but an IO::Socket::SSL object. One can give the
usual \f(CW\*(C`SSL_*\*(C'\fR parameter of IO::Socket::SSL to \f(CW\*(C`Net::SMTP::new\*(C'\fR.
.IP "starttls" 4
.IX Item "starttls"
If the connection is not yet SSLified it will issue the \s-1STARTTLS\s0 command and
change the object, so that \s-1SSL\s0 will now be used. The usual \f(CW\*(C`SSL_*\*(C'\fR parameter of
IO::Socket::SSL will be given.
.IP "peer_certificate ..." 4
.IX Item "peer_certificate ..."
Once the \s-1SSL\s0 connection is established the object is derived from
IO::Socket::SSL so that you can use this method to get information about the
certificate. See the IO::Socket::SSL documentation.
.PP
All of these methods can take the \f(CW\*(C`SSL_*\*(C'\fR parameter from IO::Socket::SSL to
change the behavior of the \s-1SSL\s0 connection. The following parameters are
especially useful:
.IP "SSL_ca_path, SSL_ca_file" 4
.IX Item "SSL_ca_path, SSL_ca_file"
Specifies the path or a file where the CAs used for checking the certificates
are located. This is typically \*(L"etc/ssl/certs\*(R" on \s-1UNIX\s0 systems.
.IP "SSL_verify_mode" 4
.IX Item "SSL_verify_mode"
If set to 0, verification of the certificate will be disabled. By default
it is set to 1 which means that the peer certificate is checked.
.IP "SSL_verifycn_name" 4
.IX Item "SSL_verifycn_name"
Usually the name given as the hostname in the constructor is used to verify the
identity of the certificate. If you want to check the certificate against
another name you can specify it with this parameter.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
IO::Socket::SSL, Net::SMTP
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
This module is copyright (c) 2008, Steffen Ullrich.
All Rights Reserved.
This module is free software. It may be used, redistributed and/or modified
under the same terms as Perl itself.