TUTORIAL Install gMail as SMTP SmartHost for SendMail

[wardmundy]

@ostridge http://pbxinaflash.com/community/threads/how-to-use-smtp-smarthost.8936/

 

[biggy213]

I followed the instruction but no joy. I am not getting any mail from Incredible PBX-FAX 13-12.2 for SL 6.7? Any suggestions?

 

[ostridge]

NOTE: On Ubuntu, Debian, and Raspberry Pi, you may get errors restarting SendMail.

This code was needed because the 'sendmail-cf' directory is missing on these Debian/Ubuntu as sendmail/cf directory was used ; however
The 1st sed code line has a delimiter missing - substitute the following line and you're good:

sed -i 's|sendmail-cf|sendmail\/cf|' /etc/mail/sendmail.mc

 

[boilermanc]

i get an error when entering both the makemap lines:

-bash: makemap: command not found

makemap -r hash genericstable.db < genericstable

makemap -r hash client-info.db < client-info

 

[wardmundy]

i get an error when entering both the makemap lines:

-bash: makemap: command not found

If this is Debian or Ubuntu, make sure all of the prerequisite packages are in place:

https://linuxconfig.org/configuring-gmail-as-sendmail-email-relay

 

[ostridge]

make sure all of the prerequisite packages are in place

that also could be to do with permissions (chmod 640 ...) for the files referred to?
genericstable genericstable.db client-info client-info.db


makemap -r hash client-info.db < client-info

 

[boilermanc]

Thanks ward, i had to do a apt-get update and then reinstall sendmail. that got me back on track. i now find there is a file:

sendmail.mc.gmail

how does that play into the setup now?

 

[rogerjbos]

Make sure and check your ports if you are on the cloud...

I had a working setup for testing, and then I went to deploy it a few months later, the emails had stopped working. I spent many hours trying to fix it by going through many tutorials before I went to the cloud provider and asked them if they were blocking port 587. They were. Once they opened it everything worked great, but it wasted a lot of my time... lesson learned.

 

[JoeOIVOV]

Its easier to configure if you have your own SMTP relay, that way your not sending your data through Google. I use Microsoft Exchange Server and by default it will accept relayed mail from incrediblepbx without any modifications.

Add SMTP Relay
1. Edit Sendmail Make file /etc/mail/sendmail.mc:

nano /etc/mail/sendmail.mc

2. Edit the following line:

dnl define(`SMART_HOST', `MAIL.DOMAIN.COM')dnl

3. Remove the following lines as they are not needed, it defaults to port 25:

define(`RELAY_MAILER_ARGS', `TCP $h 587')
define(`ESMTP_MAILER_ARGS', `TCP $h 587')

4. Remove the following lines if Authentication is not needed for internal relay as in my case:

FEATURE(`authinfo',`hash /etc/mail/auth/client-info')dnl

5. Change the following lines:

MASQUERADE_AS('DOMAIN.com')dnl
dnl MASQUERADE_DOMAIN(DOMAIN.com)dnl
MASQUERADE_DOMAIN(DOMAIN.com)dnl

6. Save file and exit.

7. Regenerate SendMail Configuration File /etc/mail/sendmail.cf:

/etc/mail/make

After this you can send the test mail:

echo "test" | mail -s NotifyTest [email protected]

and instead of the mail arriving from [email protected] it arrives from root@{incrediblepbx.hostname.com} or asterisk@{DOMAIN.com}and never leaves your domain. This means that fax receipts and voicemails will also use this same mail server. I prefer to use my own mail server instead of GMAIL, here are the instructions I setup to apply after following the steps on the first page.