/usr/lib/python3.10/__pycache__
Edit: /usr/lib/python3.10/__pycache__/smtplib.cpython-310.pyc (35766B)
o
9jj @ sX d Z ddlZddlZddlZddlZddlZddlZddlZddl Z ddl
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ddl Z ddl Z ddl
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eZG dd deZ G dd deZ G dd deZ G dd de Z G dd deZ G dd de Z!G dd de Z"G d d d e Z#G d d d e Z$d d! Z%d"d# Z&d$d% Z'd&d' Z(d(d) Z)zddl*Z*W n e+y d*Z,Y nw d+Z,G d,d- d-Z-e,rG d.d/ d/e-Z.e/d/ d0Z0G d1d2 d2e-Z1e2d3kr*d4d5 Z3e3d6Z4e3d75d8Z6e7d9 d:Z8 e j9: Z;e;sne8e; Z8qe7d
d; e=?e4e6e8 e=@ dS dS )>a SMTP/ESMTP client class.
This should follow RFC 821 (SMTP), RFC 1869 (ESMTP), RFC 2554 (SMTP
Authentication) and RFC 2487 (Secure SMTP over TLS).
Notes:
Please remember, when doing ESMTP, that the names of the SMTP service
extensions are NOT the same thing as the option keywords for the RCPT
and MAIL commands!
Example:
>>> import smtplib
>>> s=smtplib.SMTP("localhost")
>>> print(s.help())
This is Sendmail version 8.8.4
Topics:
HELO EHLO MAIL RCPT DATA
RSET NOOP QUIT HELP VRFY
EXPN VERB ETRN DSN
For more info use "HELP ".
To report bugs in the implementation send email to
sendmail-bugs@sendmail.org.
For local information send email to Postmaster at your site.
End of HELP info
>>> s.putcmd("vrfy","someone@here")
>>> s.getreply()
(250, "Somebody OverHere ")
>>> s.quit()
N) body_encode)
SMTPExceptionSMTPNotSupportedErrorSMTPServerDisconnectedSMTPResponseExceptionSMTPSenderRefusedSMTPRecipientsRefused
SMTPDataErrorSMTPConnectError
SMTPHeloErrorSMTPAuthenticationError quoteaddr quotedataSMTP i
s
i z auth=(.*)c @ e Zd ZdZdS )r z4Base class for all exceptions raised by this module.N__name__
__module__ __qualname____doc__ r r /usr/lib/python3.10/smtplib.pyr H r c @ r )r zThe command or option is not supported by the SMTP server.
This exception is raised when an attempt is made to run a command or a
command with an option which is not supported by the server.
Nr r r r r r K r r c @ r )r zNot connected to any SMTP server.
This exception is raised when the server unexpectedly disconnects,
or when an attempt is made to use the SMTP instance before
connecting it to a server.
Nr r r r r r R r r c @ e Zd ZdZdd ZdS )r a2 Base class for all exceptions that include an SMTP error code.
These exceptions are generated in some instances when the SMTP
server returns an error code. The error code is stored in the
`smtp_code' attribute of the error, and the `smtp_error' attribute
is set to the error message.
c C s || _ || _||f| _d S N) smtp_code
smtp_errorargs)selfcodemsgr r r __init__c s z SMTPResponseException.__init__Nr r r r r$ r r r r r Z s r c @ r )r zSender address refused.
In addition to the attributes set by on all SMTPResponseException
exceptions, this sets `sender' to the string that the SMTP refused.
c C s" || _ || _|| _|||f| _d S r )r r senderr )r! r" r# r& r r r r$ o s zSMTPSenderRefused.__init__Nr% r r r r r h s r c @ r )r zAll recipient addresses refused.
The errors for each recipient are accessible through the attribute
'recipients', which is a dictionary of exactly the same sort as
SMTP.sendmail() returns.
c C s || _ |f| _d S r )
recipientsr )r! r' r r r r$ } s z SMTPRecipientsRefused.__init__Nr% r r r r r u s r c @ r )r z'The SMTP server didn't accept the data.Nr r r r r r r r c @ r )r
z&Error during connection establishment.Nr r r r r r
r r
c @ r )r z"The server refused our HELO reply.Nr r r r r r r r c @ r )r zvAuthentication error.
Most probably the server didn't accept the username/password
combination provided.
Nr r r r r r r r c C s> t j| \}}||fdkr| dr| S d| S d| S )zQuote a subset of the email addresses defined by RFC 821.
Should be able to handle anything email.utils.parseaddr can handle.
r) )emailutils parseaddrstrip
startswith
addrstring displaynameaddrr r r r
s r
c C s$ t j| \}}||fdkr| S |S )Nr( )r+ r, r- r0 r r r
_addr_only s r4 c C s t ddt dt| S )zQuote data for email.
Double leading '.', and change Unix newline '\n', or Mac '\r' into
internet CRLF end-of-line.
z(?m)^\.z..(?:\r\n|\n|\r(?!\n))resubCRLFdatar r r r s r c C s t dd| S )Ns (?m)^\.s ..)r7 r8 )bindatar r r _quote_periods r= c C s t dt| S )Nr5 r6 r: r r r _fix_eols r> r? FTc @ s e Zd ZdZdZdZdZdZdZdZ dZ
e Z ddde
jdfddZd d
Zd d Zd
d Zdd Zdd ZdOddZdd ZdPddZdd ZdPd d ZdPd d ZdPd d!Zd"d# Z dPd$d%Z d&d' Z d(d) Z d*d+ Z dQd-d.Z!dQd/d0Z"d1d2 Z#d3d4 Z$e$Z%d5d6 Z&d7d8 Z'd9d:d;d<Z(dRd=d>Z)dRd?d@Z*dRdAdBZ+d9d:dCdDZ,dSdEdFZ- , ,dTdGdHZ. ,dUdIdJZ/dKdL Z0dMdN Z1dS )Vr a This class manages a connection to an SMTP or ESMTP server.
SMTP Objects:
SMTP objects have the following attributes:
helo_resp
This is the message given by the server in response to the
most recent HELO command.
ehlo_resp
This is the message given by the server in response to the
most recent EHLO command. This is usually multiline.
does_esmtp
This is a True value _after you do an EHLO command_, if the
server supports ESMTP.
esmtp_features
This is a dictionary, which, if the server supports ESMTP,
will _after you do an EHLO command_, contain the names of the
SMTP service extensions this server supports, and their
parameters (if any).
Note, all extension names are mapped to lower case in the
dictionary.
See each method's docstrings for details. In general, there is a
method of the same name to perform each SMTP command. There is also a
method called 'sendmail' that will do an entire mail transaction.
r NehloFr) c
C s || _ || _i | _d| _|| _d| _|r)| ||\}}|dkr)| t|||dur2|| _ dS t
}d|v r?|| _ dS d} z t
t
} W n
t
jyT Y nw d| | _ dS )a Initialize a new instance.
If specified, `host` is the name of the remote host to which to
connect. If specified, `port` specifies the port to which to connect.
By default, smtplib.SMTP_PORT is used. If a host is specified the
connect method is called, and if it returns anything other than a
success code an SMTPConnectError is raised. If specified,
`local_hostname` is used as the FQDN of the local host in the HELO/EHLO
command. Otherwise, the local hostname is found using
socket.getfqdn(). The `source_address` parameter takes a 2-tuple (host,
port) for the socket to bind to as its source address before
connecting. If the host is '' and port is 0, the OS default behavior
will be used.
asciir N.z 127.0.0.1z[%s])_hosttimeoutesmtp_featurescommand_encodingsource_address_auth_challenge_countconnectcloser
local_hostnamesocketgetfqdn
gethostbyname gethostnamegaierror)
r! hostportrL rE rH r" r# fqdnr3 r r r r$ s.
z
SMTP.__init__c C s | S r r r! r r r __enter__ s zSMTP.__enter__c G s` z*z| d\}}|dkrt||W n ty Y nw W | d S W | d S | w )NQUIT )docmdr r rK )r! r r" messager r r __exit__ s
z
SMTP.__exit__c C s
|| _ dS )zSet the debug output level.
A non-false value results in debug messages for connection and for all
messages sent to and received from the server.
N)
debuglevel)r! r\ r r r set_debuglevel" s
zSMTP.set_debuglevelc G sD | j dkrttj g|R dtji d S t|dtji d S )N file)r\ printdatetimenowtimesysstderrr! r r r r _print_debug+ s
&zSMTP._print_debugc C sF |d ur
|s
t d| jdkr| d||f| j t||f|| jS )N0Non-blocking socket (timeout=0) is not supportedr z connect: to)
ValueErrorr\ rg rH rM create_connection)r! rR rS rE r r r _get_socket1 s
zSMTP._get_socket localhostc C s |r|| _ |s;|d|dkr;|d}|dkr;|d| ||d d }}zt|}W n ty: tdw |s@| j}td| || | ||| j
| _ d| _ |
\}}| jdkrg| dt| ||fS )ap Connect to a host on a given port.
If the hostname ends with a colon (`:') followed by a number, and
there is no port specified, that suffix will be stripped off and the
number interpreted as the port number to use.
Note: This method is automatically invoked by __init__, if a host is
specified during instantiation.
:r Nr^ znonnumeric portzsmtplib.connectconnect:)rH findrfindintri OSError default_portrd auditrk rE sockr_ getreplyr\ rg repr)r! rR rS rH ir" r# r r r rJ ; s(
z SMTP.connectc C s~ | j dkr
| dt| | jr;t|tr|| j}t d| | z | j
| W dS t y: | t
dw t
d)zSend `s' to the server.r zsend:z smtplib.sendServer not connectedzplease run connect() firstN)r\ rg rw ru
isinstancestrencoderG rd rt sendallrr rK r )r! sr r r send\ s
z SMTP.sendc C sd |dkr|}n| d| }d|v sd|v r'| dd dd}td| | | t dS ) z Send a command to the server.r)
z\nz\rz=command and arguments contain prohibited newline characters: N)replaceri r r9 )r! cmdr r~ r r r putcmdo s z SMTP.putcmdc
C s: g }| j du r| jd| _ z
| j td }W n ty1 } z | tdt| d}~ww |s<| td| j dkrI|
dt | t |tkrX| t
dd ||d
d d |dd }zt|}W n ty{ d
}Y n w |d d
dkrnqd|}| j dkr|
d||f ||fS )a Get a reply from the server.
Returns a tuple consisting of:
- server response code (e.g. '250', or such, if all goes well)
Note: returns -1 if it can't read response code.
- server response string corresponding to response code (multiline
responses are converted to a single, multiline string).
Raises SMTPServerDisconnected if end-of-file is reached.
Nrbr^ z Connection unexpectedly closed: z Connection unexpectedly closedr zreply:i zLine too long. s
-
z reply: retcode (%s); Msg: %a)r_ ru makefilereadline_MAXLINErr rK r r{ r\ rg rw lenr appendr. rq ri join)r! resplineer" errcodeerrmsgr r r rv | sH
z
SMTP.getreplyc C s | || | S )z-Send a command, and return its response code.r rv )r! r r r r r rY s z
SMTP.docmdc C s, | d|p| j | \}}|| _||fS )zwSMTP 'helo' command.
Hostname to send for this command defaults to the FQDN of the local
host.
helo)r rL rv helo_resp)r! namer" r# r r r r s z SMTP.heloc
C sF i | _ | | j|p | j | \}}|dkr%t|dkr%| td|| _|dkr0||fS d| _ t
| jt s@J t | j| j
dd}|d= |D ]P}t|}|rk| j dd d
|dd | j d< qNtd |}|r|d }|j|d d
} |dkr| j |d d
| | j |< qN| | j |< qN||fS )zx SMTP 'ehlo' command.
Hostname to send for this command defaults to the FQDN of the local
host.
r r ry Tzlatin-1r authr) r z((?P[A-Za-z0-9][A-Za-z0-9\-]*) ?featureN)rF r ehlo_msgrL rv r rK r ehlo_resp
does_esmtprz bytesrw decodesplit
OLDSTYLE_AUTHmatchgetgroupsr7 grouplowerstringendr. )
r! r r" r# r each
auth_matchmr paramsr r r r@ sF
z SMTP.ehloc C s | | jv S )z7Does the server support a given SMTP service extension?)r rF )r! optr r r has_extn s z
SMTP.has_extnc C s | d| | d S )z;SMTP 'help' command.
Returns help text from server.helpr^ r rf r r r r s z SMTP.helpc C s d| _ | dS )z&SMTP 'rset' command -- resets session.rA rset)rG rY rU r r r r s
z SMTP.rsetc C s$ z| W dS ty Y dS w )a Internal 'rset' command which ignores any SMTPServerDisconnected error.
Used internally in the library, since the server disconnected error
should appear to the application when the *next* command is issued, if
we are doing an internal "safety" reset.
N)r r rU r r r _rset s
z
SMTP._rsetc C s
| dS )z-SMTP 'noop' command -- doesn't do anything :>noop)rY rU r r r r s
z SMTP.noopr c C sh d}|r$| j r$tdd |D r | drd| _ntddd| }| dd t||f | S )
a8 SMTP 'mail' command -- begins mail xfer session.
This method may raise the following exceptions:
SMTPNotSupportedError The options parameter includes 'SMTPUTF8'
but the SMTPUTF8 extension is not supported by
the server.
r) c s s | ] }| d kV qdS )smtputf8N)r ).0xr r r s z SMTP.mail..r zutf-8z SMTPUTF8 not supported by serverr mailz FROM:%s%s) r anyr rG r r r r
rv )r! r& options
optionlistr r r r s
z SMTP.mailc C s< d}|r| j rdd| }| ddt||f | S )z;SMTP 'rcpt' command -- indicates 1 recipient for this mail.r) r rcptzTO:%s%s)r r r r
rv )r! recipr r r r r r $ s
z SMTP.rcptc C s | d | \}}| jdkr| d||f |dkr!t||t|tr-t|d}t |}|dd t
kr=|t
}|d t
}| | | \}}| jdkr[| d||f ||fS ) a SMTP 'DATA' command -- sends message data to server.
Automatically quotes lines beginning with a period per rfc821.
Raises SMTPDataError if there is an unexpected reply to the
DATA command; the return value from this method is the final
response code received when the all data is sent. If msg
is a string, lone '\r' and '\n' characters are converted to
'\r\n' characters. If msg is bytes, it is transmitted as is.
r; r zdata:ib rA N .) r rv r\ rg r rz r{ r? r| r= bCRLFr )r! r# r" replqr r r r; , s"
z SMTP.datac C | dt| | S )z5SMTP 'verify' command -- checks for address validity.vrfyr r4 rv r! addressr r r verifyI z SMTP.verifyc C r )z.SMTP 'expn' command -- expands a mailing list.expnr r r r r r P r z SMTP.expnc C sn | j du r/| jdu r1d| d krdks3n | \}}d| kr)dks5n t||dS dS dS dS )ab Call self.ehlo() and/or self.helo() if needed.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
N r i+ )r r r@ r r )r! r" r r r r ehlo_or_helo_if_neededW s
zSMTP.ehlo_or_helo_if_neededTinitial_response_okc C s | }|r | nd}|dur(t|ddd}| d|d | \}}d| _n | d|\}}d| _|d krh| jd7 _t|}t||ddd}| |\}}| jtkrdtd
t ||f |d ks7|d v rp||fS t
||) a Authentication command - requires response processing.
'mechanism' specifies which authentication mechanism is to
be used - the valid values are those listed in the 'auth'
element of 'esmtp_features'.
'authobject' must be a callable object taking a single argument:
data = authobject(challenge)
It will be called to process the server's challenge response; the
challenge argument it is passed will be a bytes. It should return
an ASCII string that will be base64 encoded and sent to the server.
Keyword arguments:
- initial_response_ok: Allow sending the RFC 4954 initial-response
to the AUTH command, if the authentication methods supports it.
NrA r) )eolAUTHr r^ r iN z4Server AUTH mechanism infinite loop. Last response: i ) upper
encode_base64r| rY rI base64 decodebytes
_MAXCHALLENGEr rw r ) r! mechanism
authobjectr initial_responseresponser" r challenger r r r h s2
z SMTP.authc C s0 |du rdS | j d t| jd|d S )zh Authobject to use with CRAM-MD5 authentication. Requires self.user
and self.password to be set.Nr rA md5)userhmacHMACpasswordr| hexdigestr! r r r r
auth_cram_md5 s zSMTP.auth_cram_md5c C s d| j | jf S )ze Authobject to use with PLAIN authentication. Requires self.user and
self.password to be set.z %s %s)r r r r r r
auth_plain s zSMTP.auth_plainc C s |du s | j dk r | jS | jS )ze Authobject to use with LOGIN authentication. Requires self.user and
self.password to be set.N )rI r r r r r r
auth_login s zSMTP.auth_loginc s | | ds
td| jd g d} fdd|D }|s'td||| _| _|D ]:}d| dd }z| j
|t | ||d
\}} |d v rU|| fW S W q0 t yj }
z|
} W Y d }
~
q0d }
~
ww | )
aw Log in on an SMTP server that requires authentication.
The arguments are:
- user: The user name to authenticate with.
- password: The password for the authentication.
Keyword arguments:
- initial_response_ok: Allow sending the RFC 4954 initial-response
to the AUTH command, if the authentication methods supports it.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first.
This method will return normally if the authentication was successful.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
SMTPAuthenticationError The server didn't accept the username/
password combination.
SMTPNotSupportedError The AUTH command is not supported by the
server.
SMTPException No suitable authentication method was
found.
r z,SMTP AUTH extension not supported by server.)zCRAM-MD5PLAINLOGINc s g | ]}| v r|qS r r )r r advertised_authlistr r
s z SMTP.login..z(No suitable authentication method found.auth_-_r r N)
r r r rF r r r r r r r getattrr ) r! r r r preferred_authsauthlist
authmethod method_namer" r r last_exceptionr r r login s4
z
SMTP.loginc C s | | ds
td| d\}}|dkrqts td|dur*|dur*td|dur6|dur6td|dus>|durId dl}|d
t d |du rTt
j ||d }|j | j
| jd
| _
d| _d| _d| _i | _d| _||fS t||)a Puts the connection to the SMTP server into TLS mode.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first.
If the server supports TLS, this will encrypt the rest of the SMTP
session. If you provide the keyfile and certfile parameters,
the identity of the SMTP server and client can be checked. This,
however, depends on whether the socket module really checks the
certificates.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
starttlsz+STARTTLS extension not supported by server.STARTTLSrB z&No SSL support included in this PythonN4context and keyfile arguments are mutually exclusive5context and certfile arguments are mutually exclusiver Akeyfile and certfile are deprecated, use a custom context insteadr certfilekeyfileserver_hostnameF)r r r rY _have_ssl RuntimeErrorri warningswarnDeprecationWarningssl_create_stdlib_context wrap_socketru rD r_ r r rF r r )r! r r contextr replyr r r r r s@
z
SMTP.starttlsc C sX | g }t|trt|d}| jr-| dr#|dt| |D ]}|| q%| ||\}} |dkrL|dkrB|
n| t || |i }
t|trV|g}|D ]$} |
| |\}} |dkrp|dkrp|| f|
| < |dkr||
t|
qXt|
t|kr| t|
| |\}} |dkr|dkr|
n| t|| |
S )a| This command performs an entire mail transaction.
The arguments are:
- from_addr : The address sending this mail.
- to_addrs : A list of addresses to send this mail to. A bare
string will be treated as a list with 1 address.
- msg : The message to send.
- mail_options : List of ESMTP options (such as 8bitmime) for the
mail command.
- rcpt_options : List of ESMTP options (such as DSN commands) for
all the rcpt commands.
msg may be a string containing characters in the ASCII range, or a byte
string. A string is encoded to bytes using the ascii codec, and lone
\r and \n characters are converted to \r\n characters.
If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first. If the server does ESMTP, message size
and each of the specified options will be passed to it. If EHLO
fails, HELO will be tried and ESMTP options suppressed.
This method will return normally if the mail is accepted for at least
one recipient. It returns a dictionary, with one entry for each
recipient that was refused. Each entry contains a tuple of the SMTP
error code and the accompanying error message sent by the server.
This method may raise the following exceptions:
SMTPHeloError The server didn't reply properly to
the helo greeting.
SMTPRecipientsRefused The server rejected ALL recipients
(no mail was sent).
SMTPSenderRefused The server didn't accept the from_addr.
SMTPDataError The server replied with an unexpected
error code (other than a refusal of
a recipient).
SMTPNotSupportedError The mail_options parameter includes 'SMTPUTF8'
but the SMTPUTF8 extension is not supported by
the server.
Note: the connection will be open even after an exception is raised.
Example:
>>> import smtplib
>>> s=smtplib.SMTP("localhost")
>>> tolist=["one@one.org","two@two.org","three@three.org","four@four.org"]
>>> msg = '''\
... From: Me@my.org
... Subject: testin'...
...
... This is a test '''
>>> s.sendmail("me@my.org",tolist,msg)
{ "three@three.org" : ( 550 ,"User unknown" ) }
>>> s.quit()
In the above example, the message was accepted for delivery to three
of the four addresses, and one was rejected, with the error code
550. If all addresses are accepted, then the method will return an
empty dictionary.
rA sizezsize=%dr i )r rz r{ r? r| r r r r r rK r r r r r; r ) r! from_addrto_addrsr# mail_options rcpt_options
esmtp_optsoptionr" r senderrsr r r r sendmail( sH @
z
SMTP.sendmailc C s | |d}|du rd}n
t|dkrd}ntd|du r>|d |v r-||d n||d }tj|gd d }|du rcd
d ||d ||d
||d fD }dd tj|D }t|} | d
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z
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y | dst dd}
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2} |
rtjj| |jjddd} g |ddR }ntj| } | j| dd | }
W d n1 sw Y | |||
||S ) a~ Converts message to a bytestring and passes it to sendmail.
The arguments are as for sendmail, except that msg is an
email.message.Message object. If from_addr is None or to_addrs is
None, these arguments are taken from the headers of the Message as
described in RFC 2822 (a ValueError is raised if there is more than
one set of 'Resent-' headers). Regardless of the values of from_addr and
to_addr, any Bcc field (or Resent-Bcc field, when the Message is a
resent) of the Message object won't be transmitted. The Message
object is then serialized using email.generator.BytesGenerator and
sendmail is called to transmit the message. If the sender or any of
the recipient addresses contain non-ASCII and the server advertises the
SMTPUTF8 capability, the policy is cloned with utf8 set to True for the
serialization, and SMTPUTF8 and BODY=8BITMIME are asserted on the send.
If the server does not support SMTPUTF8, an SMTPNotSupported error is
raised. Otherwise the generator is called without modifying the
policy.
z Resent-DateNr) r^ zResent-z0message has more than one 'Resent-' header blockSenderFromr c S s g | ]}|d ur|qS r r )r fr r r r s z%SMTP.send_message..ToBccCcc S s g | ]}|d qS )r^ r )r ar r r r s z
Resent-BccFrA r zOne or more source or delivery addresses require internationalized email support, but the server does not advertise the required SMTPUTF8 capabilityT)utf8)policySMTPUTF8z
BODY=8BITMIMEr )linesep)r get_allr ri r+ r, getaddressescopyr r| UnicodeEncodeErrorr r ioBytesIO generatorBytesGeneratorr cloneflattengetvaluer )r! r# r r r r resent
header_prefix addr_fieldsmsg_copy
internationalbytesmsggflatmsgr r r send_message sZ
zSMTP.send_messagec C sX z | j }d| _ |r
| W | j}d| _|r | dS dS | j}d| _|r+| w w )z(Close the connection to the SMTP server.N)r_ rK ru )r! r_ ru r r r rK s
z
SMTP.closec C s. | d}d | _| _i | _d| _| |S )zTerminate the SMTP session.quitNF)rY r r rF r rK )r! resr r r r6 s
z SMTP.quitrl r N)r) )r r )NNN)r r )NNr r )2r r r r r\ ru r_ r r r r SMTP_PORTrs rM _GLOBAL_DEFAULT_TIMEOUTr$ rV r[ r] rg rk rJ r r rv rY r r@ r r r r r r r r; r r r r r r r r r r r r5 rK r6 r r r r r sh
0
!
1
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S ) SMTP_SSLa This is a subclass derived from SMTP that connects over an SSL
encrypted socket (to use this class you need a socket module that was
compiled with SSL support). If host is not specified, '' (the local
host) is used. If port is omitted, the standard SMTP-over-SSL port
(465) is used. local_hostname and source_address have the same meaning
as they do in the SMTP class. keyfile and certfile are also optional -
they can contain a PEM formatted private key and certificate chain file
for the SSL connection. context also optional, can contain a
SSLContext, and is an alternative to keyfile and certfile; If it is
specified both keyfile and certfile must be None.
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S ) LMTPa LMTP - Local Mail Transfer Protocol
The LMTP protocol, which is very similar to ESMTP, is heavily based
on the standard SMTP client. It's common to use Unix sockets for
LMTP, so our connect() method must support that as well as a regular
host:port server. local_hostname and source_address have the same
meaning as they do in the SMTP class. To specify a Unix socket,
you must use an absolute path as the host, starting with a '/'.
Authentication is supported, using the regular SMTP mechanism. When
using a Unix socket, LMTP generally don't support or require any
authentication, but your mileage might vary.lhlor) Nc s t j|||||d dS )zInitialize a new instance.)rL rH rE N)r< r$ )r! rR rS rL rH rE r> r r r$ < s
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