How to send a mail from specific IP by using postfix SMTP account

yadheesh · 12-29-2015, 05:59 AM

Hi,

I currently have a dedicated server with 4 IPs and an SMTP account from SendGrid.

Now I am trying to send emails via those IPs through Postfix. I have configured Postfix with SMTP account bought from SendGrid.

Postfix Configuration:

Code:

relayhost = smtp.example.com:587
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = static:username:password
header_size_limit = 4096000
smtp_sasl_security_options = noanonymous


smtp_bind_address = 74.208.161.153

I can't send emails through IP address. However, I can send emails through localhost. I can also send emails through SMTP account.

How to send email via configured IP address?

urello · 12-29-2015, 08:25 AM

Pls post output of

Code:

netstat -antep |egrep '(:25|:587)'

just to ensure that postfix really listen on this ip.

yadheesh · 12-29-2015, 11:49 AM

The result is

tcp 0 0 74.208.161.153:2505 0.0.0.0:* LISTEN 31256/master
tcp 0 0 74.208.144.136:2505 0.0.0.0:* LISTEN 31670/master
tcp 0 0 74.208.167.137:2505 0.0.0.0:* LISTEN 31462/master
tcp 0 0 50.21.183.177:2505 0.0.0.0:* LISTEN 6437/master

Here we are using 2505 for postfix