I have a VPS that only needs to send e-mail, so I don't have a pop3/imap deamon running like courier or dovecot. I have multiple domains that all have mailboxes hosted elsewhere, f.e. with Google Apps.
The websites on the VPS need to be able to sent mail from (i.e. From:) and to these domains. That's why I have installed sSMTP and configured it to let an external email/smtp service handle this (SendGrid.com).
Now, so far, this all works like I want.
My problem currently is that there are sent about 400 e-mails a day to root@vps and/or postmaster@vps and I'm looking for a way to alter the e-mail address to a working address.
I think these e-mails are (partly) sent by Cron, for each task it has performed it sents an e-mail. I have tried out different things to alter the address, like change
/root/.forward (see below).
# See man 5 aliases for format postmaster: firstname.lastname@example.org root: email@example.com
I also have edited the crontab (
crontab -e) and specified a
MAILTO="" on the first line to try and disable cron mails. All to no help.
I'm looking for any help on what other area's in Ubuntu I might have missed, or perhaps this is something I can handle on SendGrid's end. Or maybe I do need a (pop3/imap) mail server, then I'd like to know which one is easy to setup and if I can limit it to these two addresses.
Any solution to prevent the bounces (400 per day) I get because the address does not exist.
Hope this clears up some things :) if there are any questions left unanswered, please let me know. Thank you for any help!
- System: Ubuntu 10.04
- Mailer: ssmtp
- SMTP: Sendgrid.com