Python To Send Emails Via Outlook Express

[Lenard Lindstrom]

ian at kirbyfooty.com writes:

> Hi Lenard,
> You just beat me to it.
> Suprise, suprise, I discovered the answer myself this time.
> 
> I have modified the script to allow the attachment(s) to still be
> passed as a string.
> Some error checking is also done to verify the attachment file exists.
> 
> I have also modified it so it can be used for multiple email addresses.
> 
> Here is the updated working script ...
> ---------------------------------------------------------
> 
> import os
> from ctypes import *
> 
> FLAGS = c_ulong
> LHANDLE = c_ulong
> LPLHANDLE = POINTER(LHANDLE)
> 
> 
> # Return codes
> SUCCESS_SUCCESS = 0
> # Recipient class
> MAPI_ORIG = 0
> MAPI_TO = 1
> 
> 
> NULL = c_void_p(None)
> 
> 
> class MapiRecipDesc(Structure):
> _fields_ = [('ulReserved', c_ulong),
> ('ulRecipClass', c_ulong),
> ('lpszName', c_char_p),
> ('lpszAddress', c_char_p),
> ('ulEIDSize', c_ulong),
> ('lpEntryID', c_void_p),
> ]
> lpMapiRecipDesc = POINTER(MapiRecipDesc)
> 
> 
> class MapiFileDesc(Structure):
> _fields_ = [('ulReserved', c_ulong),
> ('flFlags', c_ulong),
> ('nPosition', c_ulong),
> ('lpszPathName', c_char_p),
> ('lpszFileName', c_char_p),
> ('lpFileType', c_void_p),
> ]
> lpMapiFileDesc = POINTER(MapiFileDesc)
> 
> 
> class MapiMessage(Structure):
> _fields_ = [('ulReserved', c_ulong),
> ('lpszSubject', c_char_p),
> ('lpszNoteText', c_char_p),
> ('lpszMessageType', c_char_p),
> ('lpszDateReceived', c_char_p),
> ('lpszConversationID', c_char_p),
> ('flFlags', FLAGS),
> ('lpOriginator', lpMapiRecipDesc), # ignored?
> ('nRecipCount', c_ulong),
> ('lpRecips', lpMapiRecipDesc),
> ('nFileCount', c_ulong),
> ('lpFiles', lpMapiFileDesc),
> ]
> lpMapiMessage = POINTER(MapiMessage)
> 
> 
> MAPI = windll.mapi32
> 
> 
> MAPISendMail=MAPI.MAPISendMail
> MAPISendMail.restype = c_ulong          # Error code
> MAPISendMail.argtypes = (LHANDLE,       # lhSession
> c_ulong,       # ulUIParam
> lpMapiMessage, # lpMessage
> FLAGS,         # lpFlags
> c_ulong,       # ulReserved
> )
> 
> 
> def SendMail(recipient, subject, body, attachfiles):
> """Post an e-mail message using Simple MAPI
> 
> 
> recipient - string: address to send to (multiple address sperated
> with a semicolin)
> subject - string: subject header
> body - string: message text
> attach - string: files to attach (multiple attachments sperated
> with a semicolin)
> 
> Example usage
> import simplemapi
> 
> simplemapi.SendMail("to1address at server.com;to2address at server.com","My
> Subject","My message body","c:\attachment1.txt;c:\attchment2")
> 
> 
> """
> 
> # get list of file attachments
> attach = []
> AttachWork = attachfiles.split(';')
> 
> #verify the attachment file exists
> for file in AttachWork:
> if os.path.exists(file):
> attach.append(file)
> 
> 
> attach = map( os.path.abspath, attach )
> nFileCount = len(attach)
> 
> if attach:
> MapiFileDesc_A = MapiFileDesc * len(attach)
> fda = MapiFileDesc_A()
> for fd, fa in zip(fda, attach):
> fd.ulReserved = 0
> fd.flFlags = 0
> fd.nPosition = -1
> fd.lpszPathName = fa
> fd.lpszFileName = None
> fd.lpFileType = None
> lpFiles = fda
> else:
> # No attachments
> lpFiles = cast(NULL, lpMapiFileDesc) # Make NULL
> 
> # Get the number of recipients
> RecipWork = recipient.split(';')
> RecipCnt = len(RecipWork)
> 
> # Formulate the recipients
> MapiRecipDesc_A = MapiRecipDesc * len(RecipWork)
> rda = MapiRecipDesc_A()
> for rd, ra in zip(rda, RecipWork):
> rd.ulReserved = 0
> rd.ulRecipClass = MAPI_TO
> rd.lpszName = None
> rd.lpszAddress = ra
> rd.ulEIDSize = 0
> rd.lpEntryID = None
> recip = rda
> 
> # send the message
> msg = MapiMessage(0, subject, body, None, None, None, 0,
> cast(NULL, lpMapiRecipDesc), RecipCnt, recip,
> nFileCount, lpFiles)
> 
> 
> rc = MAPISendMail(0, 0, byref(msg), 0, 0)
> if rc != SUCCESS_SUCCESS:
> raise WindowsError, "MAPI error %i" % rc
> -----------------------------------

Looks good.

Lenard Lindstrom