Just a quick update for anyone facing a similar situation and finding this: Postfix does have a way to do this through a feature called "smtp generic maps" and it's easy:
Create /etc/postfix/generic with, or example: root@<contents of /etc/mailname> <some valid email address> (one "mapping" per line) Run postmap hash:generic Add "smtp_generic_maps = hash:/etc/postfix/generic" to /etc/postfix/main.cf Restart Postfix Register now for the dataVoice User Conference , October 9-11 at the Gaylord Rockies in Denver, CO. To register click Here Leroy Tennison Network Information/Cyber Security Specialist E: le...@datavoiceint.com 2220 Bush Dr McKinney, Texas 75070 www.datavoiceint.com This message has been sent on behalf of a company that is part of the Harris Operating Group of Constellation Software Inc. These companies are listed here . If you prefer not to be contacted by Harris Operating Group please notify us . This message is intended exclusively for the individual or entity to which it is addressed. This communication may contain information that is proprietary, privileged or confidential or otherwise legally exempt from disclosure. If you are not the named addressee, you are not authorized to read, print, retain, copy or disseminate this message or any part of it. If you have received this message in error, please notify the sender immediately by e-mail and delete all copies of the message. ? -----Original Message----- From: Robie Basak <robie.ba...@ubuntu.com> Sent: Tuesday, August 13, 2019 10:45 AM To: Leroy Tennison <le...@datavoiceint.com> Cc: ubuntu-server@lists.ubuntu.com Subject: [EXTERNAL] Re: Updated cron? On Tue, Aug 13, 2019 at 02:04:14PM +0000, Leroy Tennison wrote: > I don't know about a specification but, from "man 5 crontab" on > OpenSUSE 13.2 'If MAILFROM is defined (and non-empty), it is used as > the envelope sender address, otherwise, "root" is used. Sounds like it is using "sendmail -f <MAILFROM>". Thank you for bringing this up Leroy. I thought I'd share my thoughts on what we should be doing generally in Ubuntu, rather than in answer to your specific question: I have no particular objection to tweaking cron, but: 1) it does seem to me that if users find MAILFROM necessary, then they would be better served by being advised to tweak their MTA configuration rather than hoping for a similar feature in every email sending app and configuring each app individually. 2) perhaps it's better to leave cron as-is for legacy purposes, but advise that users look at newer tools that don't have a backward compatibility burden for additional functionality (eg. systemd timers). If there is clearly a leading cron compatible replacement in wide use in the community then switching to that might make sense, but it would need someone to take the ongoing effort to make sure that we don't break any existing users currently happy with the current cron implementation. -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
