IOException with sendmail: Connection reset by peer: socket write error

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joeDiHare 2015-8-9

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https://ww2.mathworks.cn/matlabcentral/answers/232960-ioexception-with-sendmail-connection-reset-by-peer-socket-write-error

评论： joeDiHare 2015-8-10

I get the following error when using sendmail.m (R2010b):

IOException while sending message: 
Connection reset by peer: socket wrtie error

This does not happen all the times, but very frequently when I try to send consecutive emails through an automated script.

Example code:

% send 3 email with attachments
for email_counter=1:3
recipient = 'example@gmail.com'; 
message   = [' ' 10 'Docs attached'];
subject   = 'docs';
sender    = 'example@gmail.com';
psswd     = 'password';
attachments = {'doc1.pdf', 'doc2'};
setpref('Internet','E_mail',sender);
setpref('Internet','SMTP_Server','smtp.gmail.com');
setpref('Internet','SMTP_Username',sender);
setpref('Internet','SMTP_Password',psswd);
props = java.lang.System.getProperties;
props.setProperty('mail.smtp.auth','true');
props.setProperty('mail.smtp.socketFactory.class', 'javax.net.ssl.SSLSocketFactory');
props.setProperty('mail.smtp.socketFactory.port','465');
sendmail(recipient, subject, message, attachments);
end

Typically, by email number 2 the script would crash and throw an exception.

Any help?

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Answer 1

Varun Bhaskar 2015-8-10

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Hello,

Since you are observing the above error only when you call the ‘sendmail’ function in a loop, try the following steps:

1) Disable anti-virus.

2) Include a pause of 5s after the ‘sendmail’ call in each iteration of the loop to ensure that one call is completed before the next one is invoked in the following manner:

pause(5)