SMTP server response 530 5 7 0 Must issue a STARTTLS command first

Question

SMTP server response  530 5 7 0 Must issue a STARTTLS command first  I get this error message when i use mail   function in php script file     I m using gmail SMTP server and gmail using STARTTLS which is secure SSL  and i already use these commands in my contact php file  ini set  SMTP   smtp gmail com    ini set  sendmail from    lt email-address gt  gmail com gt       so what command i can use to enable STARTTLS or configure in php ini file

User · Answer

Problem Solved   I edited the file  etc postfix master cf  and commented   -o smtpd relay restrictions permit sasl authenticated reject   and changed the line from  -o smtpd tls security level encrypt    to  -o smtpd tls security level may   And worked on fine

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I had a false response for the following   fputs  connection   STARTTLS   newLine     turns out I use the wrong connection variable  so I just had to change it to   fputs  smtpConnect   STARTTLS   newLine     If using TLS remember to put HELO before and after   fputs  smtpConnect   HELO    localhost    newLine    response   fgets  smtpConnect  515   if  secure     tls         fputs  smtpConnect   STARTTLS   newLine        response   fgets  smtpConnect  515   stream socket enable crypto  smtpConnect  true  STREAM CRYPTO METHOD TLS CLIENT       Say hello again      fputs  smtpConnect   HELO    localhost    newLine        response   fgets  smtpConnect  515

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Out of the box Swift Mailer can t do STARTTLS  however some nice guys have written a patch for it   I found patching it was a bit of a chore  probably went about it the wrong way   so have zipped it up ready for download here  Swift Mailer with STARTTLS

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Blockquote   I then modified the php ini file to use it  commented out the other lines     mail function    For Win32 only    SMTP   smtp gmail com   smtp port   25    For Win32 only    sendmail from    lt e-mail username gt  gmail com    For Unix only  You may supply arguments as well  default   sendmail -t -i    sendmail path    C  xampp sendmail sendmail exe -t   Ignore the  For Unix only  comment  as this version of sendmail works for Windows   You then have to configure the  sendmail ini  file in the directory where sendmail was installed    sendmail   smtp server smtp gmail com smtp port 25 error logfile error log debug logfile debug log auth username  lt username gt  auth password  lt password gt  force sender  lt e-mail username gt  gmail com  http   byitcurious blogspot com br 2009 04 solving-must-issue-starttls-command html   gt  Blockquote

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For Windows  I was able to get it working by enabling TLS for secure communication on the SMTP Virtual server  TLS will not be available on the SMTP virtual server without a certificate   This link will give the steps needed   https   support microsoft com en-ie help 4014125 how-to-configure-iis-smtp-for-outgoing-tls-authentication

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I know that PHPMailer library can handle that kind of SMTP transactions   Also  a fake sendmail with sendmail-SSL library should do the job

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I am going to share my way and it worked for me after implementing following   Open Php ini file and fill the all the values in the respective fields by taking ref from Gmail SMTP Settings  Remove comments from the  mail function  Statements which are instructions to the smtp Server and Match their values   Also the sendmail SMTP server is a Fake server  Its nothing beside a text terminal  Try writing anything on it   P   It will use gmail s tp to send Mails  So configure it correctly by matching Gmail SMTP settings   smtp gmail com Port  587

User · Answer

First  make sure you PHP installation has SSL support  look for an  openssl  section in the output from phpinfo      You can set the following settings in your PHP ini   ini set  SMTP   ssl   smtp gmail com    ini set  smtp port   465

User · Answer

In my case  Swift Mailer couldn t help either  I found a solution here  http   forum powweb com showthread php t 73406 - so after EHLO command one needs to send STARTTLS command  enabling cryptography with stream socket enable crypto   connection  true  STREAM CRYPTO METHOD TLS CLIENT    and again EHLO command  Only this allowed me to send emails with my  stubborn  SMTP server

[php] SMTP server response: 530 5.7.0 Must issue a STARTTLS command first

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