Our problem is that an application hosted on Slicehost uses an external mailserver, which is located in Europe. Since neither Slicehost/Rackspace or Cogent seem to be able to fix the situation after almost two days, here’s a quick workaround.
The idea is that our relay will collect emails and send them whenever the connection permits.
Postfix install
This is a pretty simple:
Configuration
main.cf
Edit /etc/postfix/main.cf (this is my entire main.cf):
Obviously you need to replace the **ENTRIES** in caps entries (a total of three).
/etc/postfix/sasl/passwd
Create the file:
Enter something like the following in it (vi /etc/postfix/sasl/passwd):
Replace mail/mail2 with your actual SMTP. The SMTP will have to allow plain-text login for this to work.
Run the following to finish up:
Adjust
Then, configure your application to not use smtp-auth and your SMPT runs on 127.0.0.1:25 if it runs on the same server.
Please note in the above main.cf, I configured postfix to only listen on the loopback.
Fin
This is an excerpt from an email:
And that’s all, kids!