On Saturday, 31 August 2024 21:56:59 BST syscon edm wrote:
> In /etc/postfix/main.cf I only have:
>
> myorigin = gmail.com
>
> If I use:
> myorigin = syscon8@gmail.com
>
> I get an error message;
> Aug 31 14:28:02 i5 postfix/smtp[25841]: 1A31217E00EC: to=<root@syscon8@
> gmail.com>,

OK, I expect you'd need to set an alias instead.  Try:

My cat /etc/mail/aliases
# Basic system aliases -- these MUST be present.
# Redirect mail for local recipients
MAILER-DAEMON:      postmaster
postmaster:         root
root:               syscon8

or try:

root:               syscon8@gmail.com


then run 'newaliases' each time to rebuild the database.  One of these aliases
ought to work.


> relay=smtp.gmail.com[142.250.99.109]:587, delay=0.54,
> delays=0.01/0/0.5/0.03, dsn=5.1.3, status=bounced (host
> smtp.gmail.com[142.250.99.109]
> said: 553-5.1.3 The recipient address <root@syscon8@gmail.com> is not a
> valid RFC 553-5.1.3 5321 address.
>
> my /etc/postfix/sender_canonical
> /^root@gmail\.com$/ syscon8@gmail.com

I don't think you should be using canonical - this will be rewriting addresses
within the header *and* body of messages.

Use an alias instead.

What work is to put in the first line of: "crontab" file:
MAILTO=syscon8@gmail.com