I moved from sendmail to postfix quite some time ago and learned a bit or two about postfix.
I recorded bits and pieces here that might help you tweak your config as well.
- Classifications> help you to make smaller access files
Classifications
I simplified my access lists by creating some classifications.
I added the following lines to main.cf:
# Classifications smtpd_restriction_classes = reject_RFC, reject_auto, reject_auto_virus, reject_domain, reject_dynamic, reject_infected, reject_spam, reject_user, whitelist_select reject_RFC = check_client_access regexp:/etc/postfix/class/reject_RFC reject_auto = check_client_access regexp:/etc/postfix/class/reject_auto reject_auto_virus = check_client_access regexp:/etc/postfix/class/reject_auto_virus reject_domain = check_client_access regexp:/etc/postfix/class/reject_domain reject_dynamic = check_client_access regexp:/etc/postfix/class/reject_dynamic reject_infected = check_client_access regexp:/etc/postfix/class/reject_infected reject_spam = check_client_access regexp:/etc/postfix/class/reject_spam reject_user = check_client_access regexp:/etc/postfix/class/reject_user whitelist_select = check_client_access hash:/etc/postfix/hash/whitelist-select
Then I can write a long reject message in class/reject_spam to explain why I am not accepting the message:
/./ REJECT Your email address or domain is used or implied in SPAM and will be disgarded as unwanted. Log files may be used in criminal or civil lawsuits.
Then in my access tables I can just use reject_spam after the email adres.
Like this:
friend@public.com reject_spam haasje@vanderkooij.org reject_spam
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