docs.daveops.net

Snippets for yer computer needs

EMail

See also

Videos

Connect via command line

# Connect via telnet
telnet example.com 25
# Encrypted connection
openssl s_client -connect example.com:587 -starttls smtp
HELO example.com
MAIL FROM: from@example.com
RCPT TO: to@example.com
DATA
Blah blah
.
<CR-LF>
<CR-LF>

Ports

OfflineIMAP

Signals

Mutt

Manual

Open system mail spool

mutt -f /var/mail/USERNAME

Add header to messages

my_hdr X-Operating-System: TempleOS

Whitelist TLS fingerprint

tls on
tls_fingerprint <fingerprint>
command desc
~b EXPR Search for messages containing EXPR in the body
~C EXPR To: or CC:
~f EXPR From:
~d [MIN]-[MAX] messages with date-sent in date range
~l mailing lists
~s Subject:

Postfix

Retry delivery

postqueue -f

Drop queue

postsuper -d ALL

Print non-default configuration values

postconf -n

TinyLetter

Mailing list

5,000 subscriber limit

https://tinyletter.com/