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Old 03-28-2016, 04:23 PM   #1
rtcary
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Registered: Dec 2004
Location: Petaluma, CA
Distribution: Centos 4 and RH 9
Posts: 83

Rep: Reputation: 15
ssmtp: Cannot open smtp.gmail.com:587


I have researched this message on Google and tried the suggestions to no avail. Here is my setup:

ssmtp.conf:
root=bugsbunny@gmail.com
mailhub=smtp.gmail.con:587
RewriteDomain=
AuthUser=bugsbunny
AuthPass=Rabbit97
UseSTARTTLS=YES

revaliases:
root:bugsbunny@gmail.com:smtp.gmail.com:587

error message:
ssmtp: Cannot open smtp.gmail.com:587

Does anyone have ssmtp working with Centos 5? If so, do you see any problems with the above setup?

Todd
 
Old 03-29-2016, 04:19 AM   #2
tshikose
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Registered: Apr 2010
Location: Kinshasa, Democratic Republic of Congo
Distribution: RHEL, Fedora, CentOS
Posts: 523

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Hi,

I do not think the problem is with CentOS 5.

Are you sure Google allows you to connect to smtp.gmail.com on TCP port 587?
Can you launch the command below?
nmap -sT -sV -p 25,587 smtp.gmail.com
 
Old 03-29-2016, 06:15 AM   #3
bathory
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Registered: Jun 2004
Location: Piraeus
Distribution: Slackware
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Hi,

From this post, maybe you may need to add in ssmtp.conf:
Code:
TLS_CA_File=/etc/pki/tls/certs/ca-bundle.crt
Regards
 
Old 03-29-2016, 11:12 AM   #4
rtcary
Member
 
Registered: Dec 2004
Location: Petaluma, CA
Distribution: Centos 4 and RH 9
Posts: 83

Original Poster
Rep: Reputation: 15
Yes, I was able to run nmap -sT -sV -p 25,587 smtp.gmail.com

I will try adding the CERT command.

Todd
 
Old 03-29-2016, 11:33 AM   #5
rtcary
Member
 
Registered: Dec 2004
Location: Petaluma, CA
Distribution: Centos 4 and RH 9
Posts: 83

Original Poster
Rep: Reputation: 15
With the line added

TLS_CA_File=/etc/pki/tls/certs/ca-bundle.crt

I get the following error:

ssmtp: Authorization failed (534 5.7.9 https://support.google.com/accounts/answer/185833 ml5sm44116211pab.2 - gsmtp)

*BUT* that led me to the answer: since I have 2-step verification, I needed to use an application password. My test messages are going out. Now to see if I can remember how to switch things around e.g. make sure the current mail program is shut down and put in a symbolic link.

Thank you guys for the help...greatly appreciated!!

Todd
 
  


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