7

I have the following ssmtp.conf file:

root=test@gmail.com
mailhub=smtp.gmail.com:587
hostname=ed424cef9b52
UseTLS=Yes
UseStartTTLS=Yes
AuthMethod=LOGIN
AuthUser=test
AuthPass=test
FromLineOverride=yes
TLS_CA_File=/etc/ssl/certs/ca-certificates.crt

I can connect to 587 gmail port:

telnet smtp.gmail.com 587
Trying 64.233.186.109...
Connected to gmail-smtp-msa.l.google.com.

But when I try to send mail:

/usr/sbin/ssmtp -v test@gmail.com < qq
ssmtp: Cannot open smtp.gmail.com:587

echo test | mailx  -s "testing ssmtp setup" test@gmail.com
send-mail: Cannot open smtp.gmail.com:587
Can't send mail: sendmail process failed with error code 1
SDsolar
  • 1,849
sebelk
  • 4,389

1 Answers1

11

The proper port is 465

Simplest way to send mail with image attachment from command line using gmail?

EXCERPT:

Install ssmtp with the following commands:

sudo apt-get update
sudo apt-get install ssmtp

Then go into /etc/ssmtp and edit ssmtp.conf to look like this:

root=rpi3abc@gmail.com
mailhub=smtp.gmail.com:465
FromLineOverride=YES
AuthUser=rpi3abc@gmail.com
AuthPass=testing123
UseTLS=YES

Send a one-liner like so:

echo "Testing...1...2...3" | ssmtp myusername@gmail.com

Send a formatted text file like so:

cat mymessage | ssmtp myusername@gmail.com

Where mymessage can be formatted to have lines for TO: and SUBJECT: and the body.

TO: abc@def.com
SUBJECT: Testing
     -blank line-
Message body goes here....
SDsolar
  • 1,849
  • 3
    And I got: ssmtp: Authorization failed (534 5.7.9 https://support.google.com/mail/?p=InvalidSecondFactor s3sm1189087qkj.118 - gsmtp)

    Is this because google turned on two-factor authentication?

     – mpersico Oct 20 '21 at 16:38
  • 2
    Fixed: https://stackoverflow.com/questions/26736062/sending-email-fails-when-two-factor-authentication-is-on-for-gmail – mpersico Oct 20 '21 at 16:43