I am total noob about Unix and CLI. after googling for almost 6 hours I came to know I should be editing postfix port from 25 to 587 for PHP mail() function to work. and here is the solution I got but I am not sure how to change it. as already said I am a noob. any help regarding this will be appreciated.
UPDATE1 :
grawity solution gives me the following error.
May 7 00:42:39 Ibrahim-Armars-MacBook-Pro postfix/pickup[4169]: DE2073F07C1: uid=501 from=<azhararmar>
May 7 00:42:39 Ibrahim-Armars-MacBook-Pro postfix/master[4185]: fatal: open lock file pid/master.pid: unable to set exclusive lock: Resource temporarily unavailable
May 7 00:42:39 Ibrahim-Armars-MacBook-Pro postfix/cleanup[4177]: DE2073F07C1: message-id=<>
May 7 00:42:39 Ibrahim-Armars-MacBook-Pro postfix/qmgr[4168]: DE2073F07C1: from=<>, size=525, nrcpt=1 (queue active)
May 7 00:42:40 Ibrahim-Armars-MacBook-Pro postfix/smtp[4179]: DE2073F07C1: to=<>, relay=smtp.gmail.com[74.125.155.109]:587, delay=0.8, delays=0.01/0/0.79/0, dsn=4.7.5, status=deferred (TLS is required, but our TLS engine is unavailable)
May 7 00:42:41 Ibrahim-Armars-MacBook-Pro postfix/pickup[4169]: 5F2FC3F07C4: uid=501 from=<azhararmar>
May 7 00:42:41 Ibrahim-Armars-MacBook-Pro postfix/cleanup[4177]: 5F2FC3F07C4: message-id=<>
May 7 00:42:41 Ibrahim-Armars-MacBook-Pro postfix/qmgr[4168]: 5F2FC3F07C4: from=<>, size=525, nrcpt=1 (queue active)
May 7 00:42:42 Ibrahim-Armars-MacBook-Pro postfix/smtp[4179]: 5F2FC3F07C4: to=<>, relay=smtp.gmail.com[74.125.155.109]:587, delay=0.79, delays=0.01/0/0.78/0, dsn=4.7.5, status=deferred (TLS is required, but our TLS engine is unavailable)
May 7 00:42:50 Ibrahim-Armars-MacBook-Pro postfix/master[4190]: fatal: open lock file pid/master.pid: unable to set exclusive lock: Resource temporarily unavailableUPDATE 2 :
May 7 01:10:02 Ibrahim-Armars-MacBook-Pro postfix/master[4472]: fatal: open lock file pid/master.pid: unable to set exclusive lock: Resource temporarily unavailable
May 7 01:10:02 Ibrahim-Armars-MacBook-Pro postfix/pickup[4419]: 357F73F090F: uid=501 from=<azhararmar>
May 7 01:10:02 Ibrahim-Armars-MacBook-Pro postfix/cleanup[4430]: 357F73F090F: message-id=<>
May 7 01:10:02 Ibrahim-Armars-MacBook-Pro postfix/qmgr[4420]: 357F73F090F: from=<>, size=525, nrcpt=1 (queue active)
May 7 01:10:03 Ibrahim-Armars-MacBook-Pro postfix/smtp[4448]: certificate verification failed for smtp.gmail.com[74.125.155.109]:587: untrusted issuer /C=US/O=Equifax/OU=Equifax Secure Certificate Authority3 Answers
According to your comments on other answers, you need to configure Postfix to use Gmail as a relay host. There are many tutorials on the Internet for this; here's a quick version.
Note: With this configuration, all mail must be sent using your Gmail address as "From".
Undo all your changes to
master.cf.In
main.cf, add these settings:# This tells Postfix to hand off all messages to Gmail, and never do direct delivery. relayhost = [smtp.gmail.com]:587 # This enables TLS (SMTPS) certificate verification, because Gmail has a valid one. smtp_tls_security_level = verify smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt smtp_tls_session_cache_database = btree:/var/run/smtp_tls_session_cache # This tells Postfix to provide the username/password when Gmail asks for one. smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymousIn
/etc/postfix/sasl_passwd, add your Gmail username and password, like this:[smtp.gmail.com]:587 :mypasswordCompile the
sasl_passwdfile into a database:postmap /etc/postfix/sasl_passwdFinally reload Postfix's main configuration:
postfix reload
If you only want it running on port 587 (and I'm not sure you do; I'd think you'd want it running on both 25 and 587), then find the line in /etc/postfix/master.cf that looks like this:
smtp inet n - n - - smtpdAnd change it to look like this:
587 inet n - n - - smtpdIf you want it running on both ports, then add the second line after the first one rather than replacing it.
9I want to thank user1686 for their GREAT little tutorial! After hours of search I was finally able to solve my Postfix smtp sent problem.
In my case the problem was very trivial; I just had to add the :587 port information also in the /etc/postfix/sasl_passwd file. Without that, my email relay host refuses to establish any connection. The following command should be the easiest way to reach this in one step:
echo "[smtp.xyz.com]:587 :password" > /etc/postfix/sasl_passwdMake it root only:
chown root:root /etc/postfix/sasl_passwd
chmod 600 /etc/postfix/sasl_passwdWell, most other Postfix tutorials do not mention this very important port related fact! Some only state that the relayhost = [smtp.xyz.com]:587 port information has to be added sometimes in main.cf. Well, in my case that essential port information also had to be present in the sasl_passwd config file.
My other postfix parameter are:
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_sasl_tls_security_options = noanonymous
smtp_tls_security_level = may
smtp_tls_mandatory_protocols = !SSLv2, !SSLv3
smtp_tls_mandatory_ciphers = high
smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt
