NAME

       calibre-smtp - calibre-smtp

          calibre-smtp [options] [from to text]

       Send  mail  using  the  SMTP  protocol.  calibre-smtp has two modes of operation. In the compose mode you
       specify from to and text and these are used to build and send an  email  message.  In  the  filter  mode,
       calibre-smtp reads a complete email message from STDIN and sends it.

       text  is  the body of the email message.  If text is not specified, a complete email message is read from
       STDIN.  from is the email address of the sender and to is the email address  of  the  recipient.  When  a
       complete email is read from STDIN, from and to are only used in the SMTP negotiation, the message headers
       are not modified.

       Whenever  you pass arguments to calibre-smtp that have spaces in them, enclose the arguments in quotation
       marks. For example: "/some path/with spaces"

[OPTIONS]

       --fork, -f
              Fork and deliver message in background. If you use this option, you should also  use  --outbox  to
              handle delivery failures.

       --help, -h
              show this help message and exit

       --localhost, -l
              Host name of localhost. Used when connecting to SMTP server.

       --outbox, -o
              Path to maildir folder to store failed email messages in.

       --timeout, -t
              Timeout for connection

       --verbose, -v
              Be more verbose

       --version
              show program's version number and exit

   COMPOSE MAIL
       Options to compose an email. Ignored if text is not specified

       --attachment, -a
              File to attach to the email

       --subject, -s
              Subject of the email

   SMTP RELAY
       Options  to  use  an  SMTP  relay server to send mail. calibre will try to send the email directly unless
       --relay is specified.

       --cafile
              Path to a file of  concatenated  CA  certificates  in  PEM  format,  used  to  verify  the  server
              certificate when using TLS. By default, the system CA certificates are used.

       --dont-verify-server-certificate
              Do  not  verify  the  server  certificate  when  connecting using TLS. This used to be the default
              behavior in calibre versions before 3.27. If you are using a relay with a self-signed or otherwise
              invalid certificate, you can use this option to restore the pre 3.27 behavior

       --encryption-method, -e
              Encryption method to use when connecting to relay. Choices are TLS, SSL and NONE. Default is  TLS.
              WARNING: Choosing NONE is highly insecure

       --password, -p
              Password for relay

       --port Port  to  connect  to  on  relay  server. Default is to use 465 if encryption method is SSL and 25
              otherwise.

       --relay, -r
              An SMTP relay server to use to send mail.

       --username, -u
              Username for relay

AUTHOR

       Kovid Goyal

COPYRIGHT

       Kovid Goyal

7.6.0                                            March 01, 2024                                  CALIBRE-SMTP(1)