Hi,

I am trying to send an email from other email address. By default if i send an email my username@hostname goes out. I want to send an email using email id. I have centos 6.5. I tried mail command with options. Below are the ommands. but it is not working. Can anybody help please

mail -s "testing mail from other id" -r "From: abc@gmail.com" abc@xyz.com
mail -s "testing mail from other id" -r "abc@gmail.com" abc@xyz.com
mail -s "testing mail from other id" -aFrom:"abc@gmail.com" abc@xyz.com
mail -s "testing mail from other id" -S From="abc@gmail.com" abc@xyz.com
mail -s "$(echo -e "This is the subject\nFrom: abc@gmail.com\nContent-Type: text/html\n")" abc@xyz.com
echo "email body" | mail -s "Subject here" -r abc@gmail.com abc@xyz.com

I also tried below way but it is not happening
http://www.cyberciti.biz/tips/howto-...l-address.html

Funny - I was just doing some testing with smarttable and reminding myself how to do this.

You can specify "sendmail" options after standard "mail" options with the "-- <options>".
So to do what you want use the mail option "-s" for the subject but then use the "sendmail" option "-f" to specify the alternate sender:

Sytnax would be:
mail -s <subject> <recipient> -- -f <sender>
(Note the "--" is followed by space THEN the "-f" - it is the "--" that tells it to use the "sendmail" options.)

So for your test:
mail -s "testing mail from other id" abc@xyz.com -- -f abc@gmail.com

It did not work.

"not work" is hardly useful for diagnosing issues.

Did you get an error when you typed it?

Did you NOT get an error and simply not receive the email?

Did you receive the email but NOT get it as the from user you specified?

Did you examine the full headers of the email you received?

Did you review your /var/log/maillog to see what it did when you told it to send the mail?

Is sendmail running on your system?

No i didn't get any error
I received the email
No i am still getting an email username@hostname format
yes I examined but not getting anything in headers
I checked /var/log/maillog
Its postfix sending email

OK it appears the "mail/mailx" command changed between RHEL/CentOS 5 and RHEL/CentOS 6. The latter doesn't have the "--" for sendmail options but DOES have the "-r" for specifying the "from" sender.

The last syntax you had above worked for me using that "-r" on a RHEL 6.5 box running Sendmail:
echo "email body" | mail -s "Subject here" -r abc@gmail.com abc@xyz.com

It also worked on another RHEL 6.5 running Postfix instead of Sendmail.

Since it works on RHEL 6.5 it should work on CentOS 6.5 because it was compiled from RHEL 6.5 sources.

I don't know why the the sender is not changing. I am using the relay server IP in my environment. I don't know what is the possibility now.

Can you paste the relevant entries from your /var/log/maillog?

Can you paste the FULL headers from the email you do receive?

Menas thanks for your help. I just came to know the cause. I am near. I just came to know that their are couple of MTA postfix and one other . By default it is using other . I want to use postfix . Is there any command that should use the Postfix configuration . I mean is there a postfix binary that i can use to send an email with from address ?

If i send mail using mail command it is using other MTA. I want to use Postfix as a MTA.

There should be a /usr/sbin/sendmail.postfix command.

If so you can create a file with the details you - call it testmail for example:
Note: The dot on the last line above is important.

run the sendmail.postfix using testmail as input:

/usr/sbin/sendmail.postfix -t <testmail

After changing parameter in the default MTA configuration i am able to send an email with the command "

mail -s "testing mail from other id" -r abc@gmail.com abc@xyz.com


Thanks for answering. now i am going to close the thread.