Question

What is to change or to setup in order to send confirmation email ?

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Warning: Could not send confirmation email

ERROR: Can't send mail using Net::SMTP. 5.7.0 Must issue a STARTTLS command first. d13sm12991131fka.3 at c:\PROGRA~1\TWiki\twiki\lib/TWiki/Net.pm line 437 TWiki::Net::_sendEmailByNetSMTP('TWiki::Net=HASH(0x2290e2c)', 'Date: Mon, 21 Jul 2008 05:46:30 GMT\x{a}From: TWiki Administrator...') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/Net.pm line 316 TWiki::Net::__ANON__() called at c:\PROGRA~1\TWiki\twiki\lib/CPAN/lib//Error.pm line 379 eval {...} called at c:\PROGRA~1\TWiki\twiki\lib/CPAN/lib//Error.pm line 371 Error::subs::try('CODE(0x22e679c)', 'HASH(0x23d982c)') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/Net.pm line 332 TWiki::Net::sendEmail('TWiki::Net=HASH(0x2290e2c)', 'From: TWiki Administrator <j-ph.knoepfel@sunrise.ch>\x{a}To: Mari...') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/UI/Register.pm line 972 TWiki::UI::Register::_emailRegistrationConfirmations('TWiki=HASH(0x178b3ec)', 'HASH(0x204d33c)') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/UI/Register.pm line 814 TWiki::UI::Register::complete('TWiki=HASH(0x178b3ec)') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/UI/Register.pm line 341 TWiki::UI::Register::registerAndNext('TWiki=HASH(0x178b3ec)') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/UI/Register.pm line 97 TWiki::UI::Register::register_cgi('TWiki=HASH(0x178b3ec)') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/UI.pm line 159 TWiki::UI::__ANON__() called at c:\PROGRA~1\TWiki\twiki\lib/CPAN/lib//Error.pm line 379 eval {...} called at c:\PROGRA~1\TWiki\twiki\lib/CPAN/lib//Error.pm line 371 Error::subs::try('CODE(0x34a2c4)', 'HASH(0x204cebc)') called at c:\PROGRA~1\TWiki\twiki\lib/TWiki/UI.pm line 197 TWiki::UI::run('CODE(0x1780e64)') called at C:/Program Files/TWiki/twiki/bin/register line 31

Too many failures sending mail

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Environment

-- TWikiGuest - 21 Jul 2008

Answer

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>What is to change or to setup in order to send confirmation email ?

In configure, set the value of {SMTP}{MAILHOST}

Otherwise, check the suggestions in CouldNotSendConfirmationMail.

-- SeanCMorgan - 21 Jul 2008

Thanks for your answer.

Before posting my question, {SMTP}{MAILHOST} was already configured with: smtp.gmail.com:465 (like defined in my Outlook account)

Do you have an other idea to solve the problem ?

Best regards Jean-Philippe Knoepfel

-- TWikiGuest - 22 Jul 2008

I believe that GMail will not accept mails from foreign domains. Your log shows that your sender's address is j-ph.knoepfel@sunrise.ch.

Maybe it is worth trying to set either your GMail-address as administrator's address with GMail in {SMTP}{MAILHOST} or the sunrise address with a corresponding smtp server.

-- SebastianKlus - 23 Jul 2008

Hi Sebastian,

Thanks for these hints, but it doesn't work.

Do you know somebody who have TWiki installed on windows and using email for registrations and notifications ?

Best regards Jean-Philippe Knoepfel

-- TWikiGuest - 27 Jul 2008

> Do you know somebody who have TWiki installed on windows and using email for registrations and notifications ?

Certainly. Me for one.

> ERROR: Can't send mail using Net::SMTP.

Perhaps you are missing the Net::SMTP module? See these messages with the same problem:

• WindowsSubstituteForSendMail
• WindowsInstallationDeadEnd
• CouldNotSendConfirmationMail (very similar title to this question)

-- SeanCMorgan - 29 Jul 2008

Seems to be answered. Closing this question after more than 30 days of inactivity. Feel free to re-open if needed.

-- PeterThoeny - 02 Sep 2008

What are 30 days of inactivity when you have eight years of time?

I just stumbled about the very same problem and did some research. No, setting {SMTP}{MAILHOST} is not the problem, neither is a missing Net::SMTP which is in the Perl core (perhaps not on Red Hat, they also exclude CGI.pm). The problem is, as indicated by the first line of the error report, Must issue a STARTTLS command first. Some SMTP servers simply insist on that. TWiki doesn't do that, and can't be convinced by configure to do it.

The good news: If you look at the current documentation of Net::SMTP , you see that Net::SMTP indeed has a starttls which just needs to be called. That's one line of code in lib/TWiki/Net.pm, plus one line in lib/TWiki.spec to allow to configure STARTTLS use for your TWiki, plus maybe one or two dozens of lines of documentation whether to activate STARTTLS. I almost were about to write a feature request, but then, there are always gotchas.

Harmless, but needs to be checked by configure: Using STARTTLS that way needs IO::Socket::SSL, a SSL capable drop-in replacement of IO::Socket.

The bad news: All that does not work before Perl 5.22 and hence not even in most "current" Linux distributions. The starttls method is not available in Net::SMTP as provided with Perl 5.20. Debian Jessie has 5.20, 5.22 is lingering in unstable and testing, other distributions seem to provide even older Perls.

So what I did to solve my problem was to install current versions of Net::SMTP, IO::Socket::SSL and Socket from CPAN, patch TWiki as indicated above, and it works just fine (in Debian Jessie).

TWiki is still committed to support medieval Perl versions, so I guess we need to wait another eight years until this feature can be just added to the core... or to have yet another bunch of modules where CPAN knowledge is required (packaging them to TWiki is not an option since Socket has architecture-dependent XS parts) ... or to define a TWiki "package" containing all it needs.

-- Harald Jörg - 2016-08-09