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There is no reason for the server to reject the HELO greeting but is useful to make such a error checking. com’) the script checks if the receiver address exists on that server. ret_code is a variable (list) which will contain the server reply after the instruction is executed, containing two elements: an integer, meaning the reply code and a string for human consumption. In case the user exist on that machine, the code is 250 and in case of error we receive a 550. The most important method is sendmail(fromaddr, toaddr, message[, mail options, recipient options] ), which is the real sender of the message.

Clause using the SMTPHeloError exception). There is no reason for the server to reject the HELO greeting but is useful to make such a error checking. com’) the script checks if the receiver address exists on that server. ret_code is a variable (list) which will contain the server reply after the instruction is executed, containing two elements: an integer, meaning the reply code and a string for human consumption. In case the user exist on that machine, the code is 250 and in case of error we receive a 550.

The author is interested in any feedback with suggestions, error reports, things that may be added. ro. REFERENCES 31 References [1] S. 3BSD Interprocess Communication Tutorial [2] A. , Prentice-Hall, 1996 [3] E. Gramma et al: Design patterns - Elements of Reusable Object-Oriented Software, Addison-Wesley, 1994 [4] G. van Rossum: Python Library Reference [5] G. van Rossum: Pyhton Tutorial [6] G. van Rossum: Pyhton Language Reference [7] G.

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