Linux configuration -- ssmtp: Cannot open smtp.gmail.com:587

Question

Hi I have RHEL5 with ssmtp installed on it ssmtp-2.61-22.el5.i386.rpm

my /etc/ssmtp/ssmtp.conf updated as below :-

[email protected]
AuthPass=mypassword
FromLineOverride=YES
mailhub=smtp.gmail.com:587
UseSTARTTLS=YES
UseTLS=Yes
RewriteDomain=gmail.com

also revaliases updated as below :

root:[email protected]:smtp.gmail.com:587

i have shutdown sendmail service

when i try to send email with ssmtp i get below error

[root@ctmtest ssmtp]# echo "test" | ssmtp -vvv [email protected]
[<-] 220 smtp.gmail.com ESMTP v26sm42795996pfi.56 - gsmtp
[->] EHLO ctmtest
[<-] 250 SMTPUTF8
[->] STARTTLS
[<-] 220 2.0.0 Ready to start TLS
ssmtp: Cannot open smtp.gmail.com:587

i searched lots of tag with this error , but unable to fix this

my system is able to connect smtp.gmail.com on port 587

[root@ctmtest ssmtp]# telnet smtp.gmail.com 587
Trying 74.125.200.108...
Connected to smtp.gmail.com (74.125.200.108).
Escape character is '^]'.
220 smtp.gmail.com ESMTP o90sm11695907pfi.17 - gsmtp

is there anyone who have fixed this ? please suggest

Answer 1

I encountered the same problem. The following steps worked for me:

1. sudo vi /etc/ssmtp/ssmtp.conf Add the following:

TLS_CA_FILE=/etc/pki/tls/certs/ca-bundle.crt [email protected] mailhub=smtp.gmail.com:587 AuthUser=XXXX AuthPass=XYXYX UseSTARTTLS=Yes UseTLS=Yes hostname=AAAA

Replace: XXXX- username(mail) XYXYX- password(mail password) AAAA- hostname(get by running $hostname)

2. sudo vi /etc/ssmtp/revaliases Add the following:

root:[email protected]:smtp.gmail.com:587

Replace : XXXX - username(mail)

3. Try running the mail now:

   $mail -s "adasdas" [email protected]

   CC: XYZLoremIpsum . 'ctrl+D'

It solved my problem. Hopefully for a system(Office) you need to configure correct proxy settings otherwise you will get an error:

cannot send message: Process exited with a non-zero status