SID-02308: Cannot send email with SMTP

Status:	Answered	TWiki version:	6.0.2	Perl version:	v5.10.1
Category:	CategoryEmail	Server OS:	CentOS 7	Last update:	8 years ago

I have configure my twiki using SMTP for EMail. But it is failed to send email. Following message is shown when I want to reset my password.

TWiki.ERROR: Can't send mail using Net::SMTP. Can't connect to 'smtp.mysite.com' at /var/www/twiki/lib/TWiki/Net.pm line 665. %PARAM2% %PARAM3% %PARAM4%

But I am sure that I can ping this smtp server successfully.

My Configure setting is:

{EnableEmail} true
{WebMasterEmail} wikimaster@mysite.com
{WebMasterName} XXXXXXXX
{MailProgram}  /usr/sbin/sendmail -t -oi -oeq  // default value
{SMTP}{MAILHOST} smtp.mysite.com
{SMTP}{Username} wikimaster@mysite.com
{SMTP}{Password} mypassword

all other fields about email are blanks.

Can you help to find something reasons ? Thanks.

-- Tony Lu - 2017-03-19

Discussion and Answer

You can get more information by configuring your TWiki with the expert option {SMTP}{Debug}. This usually helps a lot to get the exact reason why sending mail fails. So far, I have just one guess:Your {SMTP}{Username} should be your mysite account and not your mail address - maybe just omit the @mysite.com?

-- Harald Jörg - 2017-03-19

Or, possibly your mail server requires TLS? See SMTPUseTLS

Also, if the smtp server is company internal you likely do not need to authenticate to send e-mail, e.g. empty {SMTP}{Username} and {SMTP}{Password}

-- Peter Thoeny - 2017-03-19

Finally, I got the reason about it. It should be configured to allow connect network and send email by execute command: setsebool httpd_can_sendmail=1 setsebool httpd_can_network_connect=1

-- Tony Lu - 2017-03-20

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