How do I configure #sSMTP to change both, the FROM and the TO field?
mailer.conf refers to ssmtp for #sendmail, and is used by #CRON. Unfortunately, from- and to-fields in those mails only contain the local username and can not be delivered by the external mail server. Using mail(1) from the CLI does respect all the aliases from mail.rc and mails get delivered.
What's a proper way to setup system #mail with external #SMTP on #FreeBSD? Changing #MTA would be ok, if needed. #Email #followerpower

@rwatt @malte No. If you want to use stock #FreeBSD RELEASE versions, use freebsd-update, it's the simplest way. Using source is only needed when you want to change build-time options (which I do, e.g. to leave out #sendmail, #tcsh, #ssh and a few other things from base).

Can't figure out how an old email relay is set up -- need to change passwords #sendmail

https://askubuntu.com/q/1478619/612

Using sendmail to send notifications (Fail2Ban) through Postfix relay #postfix #smtp #sendmail #fail2ban

https://askubuntu.com/q/1466614/612

JUST RELEASED!
#MIMEDefang 3.4.1, the mature #milter that lets you integrate #SpamAssassin, #ClamAV, and other filtering tools with #Sendmail, #Postfix, or any other milter-capable #MTA and to enact any #email policy or practice that you can express in #Perl.

https://mimedefang.org

@cstross @marjolica

Since you mention Xenix, here's a couple of interesting historical tidbits:

One of the ironies of history is that #MMDF, which SCO Xenix had instead of #Sendmail, would have been far more popular had it been around just a decade later.

It's also interesting that if one is writing stuff for a virtual terminal on FreeBSD, one still has traces of Xenix around. The keymap(5) file format is much the same as the #Xenix one.

Understand failure messages when starting sendmail #email #sendmail

https://askubuntu.com/q/1460890/612

pub-relayは1時間ごとに再起動すれば安定してるからw
これでいいやになってしまった。

オープンリレーなのは気になってるけど、拡散力の低いリレーを利用する鯖缶はいないだろうから結果的には無問題。

オープンリレーというと、設定を盛大に間違えたsendmailみたいだ。
#sendmail

@darkuncle @ChrisShort interesting ok I understand...a different take I guess, I've worked previously at #Sendmail and #Zimbra and have been running my own mail servers for myself and friends' domains for 25+ years, and never had any issues with reliability or deliverability (other than the occasional outage or uprade problem of course)

I've run my own #email server since 1989. At one point I was fluent in #sendmail configuration-file syntax. I still run my own #Usenet #NNTP server, which I've been doing for nearly as long.
At first it was just to learn how to do it, then it was to provide free services to others in the community who needed them, then it was to take a stand for privacy and against centralization.
Now I'm considering running my own #Fediverse server for the same reasons. As if I had time for that. 😉
#SysAdmin

New post on my blog: "Configuring exim4 To Use GMail As A Smarthost Mail Relay on Fedora 36"

How to configure exim on Fedora to forward all outbound e-mail via Gmail's SMTP server

Read more: https://daveking.com/blog/index.php/2022/11/28/configuring-exim4-to-use-gmail-as-a-smarthost-mail-relay-on-fedora-36/

#exim #howto #sendmail #software

New post on Whatcha Doin'?: "Configuring exim4 As A Mail Relay on Fedora 36"

How to configure exim on Fedora to forward all outbound e-mail via a SMTP mail gateway

Read more: https://daveking.com/blog/index.php/2022/11/27/configuring-exim4-as-a-mail-relay-on-fedora-36/

#exim #fedora #howto #linux #sendmail

Greetings, time for my #introduction!

I’m a security and infrastructure technologist who lives in the Northern California Bay Area and works at #Proofpoint. Outside of work, I assist in maintaining open source #sendmail and am a #FreeBSD committer. For my fellow geeks, my favorite protocols are #DNS, #SMTP, and #XMPP.

When I'm not buried in my laptop, I like to travel and hang out with my partner and our two dogs.

New blog post! "Configuring exim4 as a Mail Relay on Ubuntu Linux"

How to configure exim4 on Ubunti to forward all outbound e-mail via a SMTP mail gateway

#exim #linux #sendmail

@fitheach I managed to break the Mastodon mailer, so I've updated the guide with a fix. #sendmail

@fitheach I managed to break the Mastodon mailer, so I've updated the guide with a fix. #sendmail

@ademalsasa

I used to host a dedicated email server + webmail years ago using Sendmail + Squirrelmail.

📨 SquirrelMail is worth knowing about / trying.

GPL

#sendmail #postfix #selfhosting #Squirrelmail #foss #Linux
Check it: https://squirrelmail.org

It's GPL.

✉️ Check it out:
https://squirrelmail.org

One of my #GitLab instances was no longer able to send e-mails. (It tried to send almost empty e-mails, but its smarthost discarded those.)

It was the one that used #nullmailer as its #MTA. GitLab recommends either #Sendmail or #Postfix as an MTA. Switching to Postfix solved this issue for me.

Making sure that Postfix uses the #StartTLS capability of its smarthost took longer than expected.

It's also rather annoying that on Debian systems, postfix by default accepts connections from anywhere on the Internet even though I asked debconf to set up a “satellite system”.

When using Nullmailer, I just had to put the line “smtp.domain.tld smtp --port=25 --starttls” in /etc/nullmailer/remotes.

For Postfix, I need this:
inet_interfaces = loopback-only
smtp_tls_security_level = encrypt

Your mileage may vary.

@jwildeboer

Since I had to do #sendmail in my early sysadmin live, I am ready to forgive a lot of #postfix quirks 🙂

Who knows what evil lurks in the heart of sendmail?

I want to send from a script. I am on FreeBSD, if that matters.

% echo "Hi" |sendmail -s "Hi" ADDR
WARNING: RunAsUser for MSP ignored, check group ids (egid=1001, want=25)
can not chdir(/var/spool/clientmqueue/): Permission denied
Program mode requires special privileges, e.g., root or TrustedUser.

I try adding the user to /etc/group smmsp (gid=25), and it doesn't help.

Help?

#sendmail