SSMTP ERROR : CANNOT OPEN SMTP.GMAIL.COM:587

Question

I've installed ssmtp on Centos 6 and configured it, here is my ssmtp.conf file contain :

[email protected]
mailhub=smtp.gmail.com:587
rewriteDomain=gmail.com
[email protected]
UseTLS=Yes
UseSTARTTLS=Yes
[email protected]
AuthPass=Mail00Test
FromLineOverride=YES
TLS_CA_FILE=/etc/pki/tls/certs/ca-bundle.crt

When sending mails, this error displays :

CANNOT OPEN SMTP.GMAIL.COM:587

Answer 1

I am giving you few hints. Think those will solve your issue.

• 1. Change the hostname, like

     hostname=localhost

• 2. Go the below link and click Turn on https://www.google.com/settings/security/lesssecureapps
• 3. Check the file TLS_CA_FILE exits or not.

Then try to send mail.