From 716c2b0f7ffa6e8b0821d3b293a20154fd9e3f3a Mon Sep 17 00:00:00 2001 From: Tim Vaughan Date: Fri, 13 Sep 2019 11:10:14 +0200 Subject: [PATCH] Prevent retries on delivery rejections. --- lambdamail.scm | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/lambdamail.scm b/lambdamail.scm index eb5943c..c3a68c1 100644 --- a/lambdamail.scm +++ b/lambdamail.scm @@ -17,7 +17,7 @@ (chicken sort) srfi-1 srfi-13 matchable base64) -(define lambdamail-version "LambdaMail v1.1.0") +(define lambdamail-version "LambdaMail v1.2.0") (define-record config host port spool-dir user group) (define-record message to from text user password) @@ -261,7 +261,7 @@ (smtp-session 'expect "354") (smtp-session 'send (message-text msg)) (smtp-session 'send ".") - (smtp-session 'expect "250") + (smtp-session 'expect "250" "5") ;Do not try again on rejects. (smtp-session 'send "quit")))) (close-input-port tcp-in) (close-output-port tcp-out) @@ -271,12 +271,15 @@ (print "* REMOTE DELIVERY FAILED (unexpected server response)")) result))))) +(define (or-list l) + (fold (lambda (a b) (or a b)) #f l)) + (define ((make-outgoing-smtp-session tcp-in tcp-out) . command) (match command - (('expect code) + (('expect codes ...) (let ((result (read-line tcp-in))) - (print "Expecting " code " got " result) - (string-prefix? code result))) + (print "Expecting one of " codes " got " result) + (or-list (map (lambda (code) (string-prefix? code result)) codes)))) (('send strings ...) (print "Sending " (if (> (string-length (car strings)) 30) (string-take (car strings) 30) @@ -340,4 +343,4 @@ (main) ;; (define (test) -;; (run-server (make-config "localhost" 2525 "spool" '() '()))) + ;; (run-server (make-config "localhost" 2525 "spool" '() '()))) -- 2.20.1