Rishabh's questions

We have an existing smtp environment setup in an EC2 instance which is used to send Transactional emails like password reset. Now we have a requirement to send System emails to a large user base in the range of > 1000 emails per day.

First question is: Is Amazon SES delivery reliable ?

Second: Should we use our own SMTP instance or SES ? I Think if we use our SMTP server then sending large number of emails will eventually cause the mails landing in spam.

As the mails are important system emails, and not promotional bulk email. Delivery is a major concern.

I have nginx running on port 80 and apache running on port 8080

I want to transfer all the traffic to both nginx and apache asynchronously i.e the performance of one server wont be dependent on the others. The reason being nginx will serve my website and apache will be used to run analytics on the traffic.

I want to mirror/copy the traffic on both port. I dont want FORWARDING ...

I tried the following but in vain ...

sudo iptables -A PREROUTING -t mangle -p tcp ! -s 127.0.0.1/32 --dport 80 -j TEE --gateway 127.0.0.1

and

sudo iptables -A POSTROUTING -t nat -p tcp -s 127.0.0.1/32 --dport 8080 -j SNAT --to 127.0.0.1:8080

Where am I going wrong ?

I am using iptables v1.4.10 on ubuntu 11.04