Author: Haw Loeung
Revision Date: 2021-09-02 01:25:24 UTC

Remove ssmtp configuration

It's wrong, it misconfigures ssmtp causing undeliverable mail and
adding to mail logs noise:

| Sep 2 01:15:02 seviper postfix/smtpd[6486]: NOQUEUE: reject_warning: RCPT from ...: 504 5.5.2 <localhost>: Helo command rejected: need fully-qualified hostname; from=<root@localhost> to=<ubuntu@localhost> proto=SMTP helo=<localhost>
| Sep 2 01:15:02 seviper postfix/smtpd[6486]: NOQUEUE: reject_warning: RCPT from ...: 504 5.5.2 <ubuntu@localhost>: Recipient address rejected: need fully-qualified address; from=<root@localhost> to=<ubuntu@localhost> proto=SMTP helo=<localhost>
| Sep 2 01:15:02 seviper postfix/smtpd[6486]: NOQUEUE: reject_warning: RCPT from ...: 504 5.5.2 <root@localhost>: Sender address rejected: need fully-qualified address; from=<root@localhost> to=<ubuntu@localhost> proto=SMTP helo=<localhost>

Author: Haw Loeung
Revision Date: 2021-03-22 03:38:59 UTC

Prefer IPv4 over IPv6 for requests to the main Ubuntu Archive servers/backends

Author: Haw Loeung
Revision Date: 2021-03-12 03:03:03 UTC

Drop MaxSpareThreads - LP:1918211

We can't have too many around to allow for a server process to cycle
out. Otherwise we're back at the issue with scoreboard is full, not at
MaxRequestWorkers.