Golang framework for building Simple Mail Transfer Protocol Daemons.
Фреймворк для создания почтовых серверов, написанный на Go.
- Haraka hooks inspired CheckerFunc's being called on different actions of client (connection, HELO/EHLO command, StartTLS)
StartTLS,XClient,Proxycommand support- Easy to implement logger interface
- Build-in OpenTelemetry support - see dovecot_inbound and dovecot_outbound examples
- Lot of plugins, including:
- Dovecot plugin for authentication and LMTP mail delivery
- Rspamd plugin for blocking spam
- Plugins to deliver via 3rd party SMTP proxy, LMTP and SendMail.
- Experimental Karma plugin to implement connection scoring (IP addresses making failed SMTP transactions will be blacklisted)
- HELO/EHLO checkers, including complicated ones
- Sender resolvable checker plugin to ensure sender's domain can accept our replies
- https://github.com/chrj/smtpd (часть кода)
- https://haraka.github.io/ (реализация функционала плагинов, общая идеология)
- https://github.com/albertito/chasquid/ (реализация проверки получателей и авторизации через сокеты Dovecot)
package main
import (
"log"
"github.com/vodolaz095/msmtpd"
)
func main() {
server := msmtpd.Server{
Hostname: "localhost",
WelcomeMessage: "Do you believe in our God?",
}
err := server.ListenAndServe(":1025")
if err != nil {
log.Fatalf("%s : while starting server on 0.0.0.0:1025", err)
}
}
2023/08/02 16:30:11 INFO [1cca484c18ebe494240b196bc60ee39c]: Accepting connection from [::1]:34142...
2023/08/02 16:30:11 INFO [1cca484c18ebe494240b196bc60ee39c]: EHLO <localhost> is accepted!
2023/08/02 16:30:11 INFO [1cca484c18ebe494240b196bc60ee39c]: MAIL FROM <[email protected]> is checked by 0
SenderCheckers and accepted!
2023/08/02 16:30:11 INFO [1cca484c18ebe494240b196bc60ee39c]: Recipient <[email protected]> will be 1st one in
transaction!
2023/08/02 16:30:11 INFO [1cca484c18ebe494240b196bc60ee39c]: Subject: test Wed, 02 Aug 2023 16:30:11 +0300
2023/08/02 16:30:11 INFO [1cca484c18ebe494240b196bc60ee39c]: Body (264 bytes) checked by 0 DataCheckers successfully!
2023/08/02 16:30:11 WARN [1cca484c18ebe494240b196bc60ee39c]: Message silently discarded - no DataHandlers set...
2023/08/02 16:30:12 INFO [1cca484c18ebe494240b196bc60ee39c]: Closing transaction.
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Accepting connection from [::1]:50596...
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: EHLO <localhost> is accepted!
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: MAIL FROM <[email protected]> is checked by 0
SenderCheckers and accepted!
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Recipient <[email protected]> will be 1st one in
transaction!
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Recipient <[email protected]> will be 2nd one in
transaction!
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Recipient <[email protected]> will be 2nd one in
transaction!
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Recipient <[email protected]> will be 4th one in
transaction!
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Subject: test Wed, 02 Aug 2023 16:30:31 +0300
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Body (334 bytes) checked by 0 DataCheckers successfully!
2023/08/02 16:30:31 WARN [4dfe768e04186309306b1af3194b05c4]: Message silently discarded - no DataHandlers set...
2023/08/02 16:30:31 INFO [4dfe768e04186309306b1af3194b05c4]: Closing transaction.
$ swaks --to [email protected],[email protected],[email protected],[email protected] \
--from [email protected] \
--server localhost --port 1025 \
--timeout 600=== Trying localhost:1025...
=== Connected to localhost.
<- 220 Do you believe in our God?
-> EHLO localhost
<- 250-localhost
<- 250-SIZE 10240000
<- 250-8BITMIME
<- 250 PIPELINING
-> MAIL FROM:<[email protected]>
<- 250 Ok, it makes sense, go ahead please!
-> RCPT TO:<[email protected]>
<- 250 It seems i can handle delivery for this recipient, i'll do my best!
-> RCPT TO:<[email protected]>
<- 250 It seems i can handle delivery for this recipient, i'll do my best!
-> RCPT TO:<[email protected]>
<- 250 It seems i can handle delivery for this recipient, i'll do my best!
-> RCPT TO:<[email protected]>
<- 250 It seems i can handle delivery for this recipient, i'll do my best!
-> DATA
<- 354 Ok, you managed to talk me into accepting your message. Go on, end your data with <CR><LF>.<CR><LF>
-> Date: Wed, 02 Aug 2023 16:30:31 +0300
-> To: [email protected],[email protected],[email protected],[email protected]
-> From: [email protected]
-> Subject: test Wed, 02 Aug 2023 16:30:31 +0300
-> Message-Id: <20230802163031.059039@localhost>
-> X-Mailer: swaks v20190914.0 jetmore.org/john/code/swaks/
->
-> This is a test mailing
->
->
-> .
<- 250 Thank you.
-> QUIT
<- 221 Farewell, my friend! Transaction 4dfe768e04186309306b1af3194b05c4 is finished
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