Commit | Line | Data |
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cbd69c7a MW |
1 | .TH dot-forward 1 |
2 | .SH NAME | |
3 | dot-forward \- read a .forward file under qmail | |
4 | .SH SYNOPSIS | |
5 | in | |
6 | .BR ~/.qmail : | |
7 | .B | dot-forward | |
8 | [ | |
9 | .B \-nN | |
10 | ] | |
11 | .I file ... | |
12 | .SH OVERVIEW | |
13 | .B dot-forward | |
14 | forwards incoming messages according to | |
15 | sendmail-style | |
16 | instructions in | |
17 | .IR file , | |
18 | if | |
19 | .I file | |
20 | exists. | |
21 | Normally | |
22 | .I file | |
23 | is | |
24 | .BR .forward . | |
25 | ||
26 | .B WARNING: | |
27 | If you create a | |
28 | .B .qmail | |
29 | file to enable | |
30 | .BR dot-forward , | |
31 | make sure to add a second line specifying delivery to your normal mailbox. | |
32 | For example: | |
33 | ||
34 | .EX | |
35 | |dot-forward .forward | |
36 | .br | |
37 | ./Mailbox | |
38 | .EE | |
39 | ||
40 | .B COMPATIBILITY WARNING: | |
41 | .B dot-forward | |
42 | does not support | |
43 | .B :include: | |
44 | or mbox deliveries. | |
45 | You can use the delivery mechanism described in | |
46 | .BR dot-qmail (5) | |
47 | instead. | |
48 | .SH OPTIONS | |
49 | .TP 5 | |
50 | .B \-N | |
51 | (Default.) | |
52 | Read and forward a message. | |
53 | .TP | |
54 | .B \-n | |
55 | Parse | |
56 | .I file | |
57 | and print the forwarding instructions in it, one per line; | |
58 | do not follow the instructions. | |
59 | You can use this option from the command line to see how your | |
60 | .B .forward | |
61 | file will be interpreted: | |
62 | ||
63 | .EX | |
64 | dot-forward -n .forward | |
65 | .EE | |
66 | .SH "FILE HANDLING" | |
67 | When a message arrives, | |
68 | .B dot-forward | |
69 | opens | |
70 | .I file | |
71 | and handles it as discussed below. | |
72 | It exits 99, so | |
73 | .B qmail-local | |
74 | will ignore further instructions in | |
75 | .BR .qmail . | |
76 | Exception: If | |
77 | .I file | |
78 | specifies delivery directly to you, | |
79 | .B dot-forward | |
80 | exits 0, so | |
81 | .B qmail-local | |
82 | will read further instructions in | |
83 | .BR .qmail . | |
84 | ||
85 | If | |
86 | .I file | |
87 | does not exist, | |
88 | .B dot-forward | |
89 | exits 0. | |
90 | You can list several | |
91 | .IR file s; | |
92 | then | |
93 | .B dot-forward | |
94 | will try each one in turn, | |
95 | using the first one that exists, | |
96 | or exiting 0 if none exist. | |
97 | ||
98 | .B COMPATIBILITY WARNING: | |
99 | .B dot-forward | |
100 | treats an empty | |
101 | .I file | |
102 | as if it did not exist. | |
103 | Versions of | |
104 | sendmail | |
105 | before V8 would throw away the incoming message. | |
106 | ||
107 | .B COMPATIBILITY WARNING: | |
108 | If | |
109 | .B dot-forward | |
110 | encounters a temporary error opening | |
111 | .IR file , | |
112 | it exits 111, so that | |
113 | .B qmail-local | |
114 | will try again later. | |
115 | sendmail | |
116 | assumes incorrectly that | |
117 | .I file | |
118 | does not exist. | |
119 | ||
120 | .B COMPATIBILITY WARNING: | |
121 | .I file | |
122 | must be readable by | |
123 | .BR dot-forward , | |
124 | which is normally running as the user. | |
125 | sendmail | |
126 | places different constraints on its | |
127 | .B .forward | |
128 | permissions, | |
129 | since it is normally running as root. | |
130 | .SH "FORWARDING" | |
131 | Normally | |
132 | .I file | |
133 | contains an address. | |
134 | .B dot-forward | |
135 | forwards the message to that address. | |
136 | ||
137 | The address is parsed as if it were in an RFC 822 message header. | |
138 | Parenthesized comments and bracketed addresses are permitted: | |
139 | ||
140 | .EX | |
141 | bob (Bob, the postmaster) @heaven.af.mil | |
142 | .EE | |
143 | ||
144 | Addresses with special characters must be quoted: | |
145 | ||
146 | .EX | |
147 | "spaced out mailbox"@heaven.af.mil | |
148 | .EE | |
149 | ||
150 | Address groups are not permitted. | |
151 | ||
152 | .I file | |
153 | can contain any number of lines, | |
154 | each line containing any number of addresses. | |
155 | .B dot-forward | |
156 | forwards the message to each address: | |
157 | ||
158 | .EX | |
159 | bob, fred, susan | |
160 | .br | |
161 | Joe Shmoe <shmoe@heaven.af.mil> | |
162 | .EE | |
163 | ||
164 | An address without a fully qualified domain name is handled | |
165 | as described in | |
166 | .BR qmail-header (5). | |
167 | Exception: Certain addresses without domain names are handled specially, | |
168 | as described below. | |
169 | .SH "DIRECT DELIVERY" | |
170 | If an address does not contain a domain name, | |
171 | and matches the environment variable | |
172 | .B $USER | |
173 | (without regard to case), | |
174 | it specifies delivery directly to you. | |
175 | ||
176 | If an address matches | |
177 | .B $USER@$HOST | |
178 | (without regard to case), | |
179 | it specifies delivery directly to you. | |
180 | ||
181 | .B COMPATIBILITY WARNING: | |
182 | sendmail's | |
183 | handling of quotes and backslashes violates RFC 821 and RFC 822, | |
184 | and is not supported by | |
185 | .BR dot-forward . | |
186 | .B dot-forward | |
187 | treats | |
188 | .B \ejoe | |
189 | the same way as | |
190 | .BR joe . | |
191 | The | |
192 | .B dot-qmail | |
193 | delivery mechanism | |
194 | lets each user manage several addresses, | |
195 | so there is no need for a special syntax to get around forwarding. | |
196 | .SH "COMMANDS" | |
197 | If an address does not contain a domain name, | |
198 | and begins with a vertical bar, | |
199 | .B dot-forward | |
200 | takes the rest of the address as a command to run: | |
201 | ||
202 | .EX | |
203 | bob, "|vacation bob" | |
204 | .EE | |
205 | ||
206 | .B dot-forward | |
207 | feeds the message to the command, | |
208 | preceded by the environment variables | |
209 | .BR $UFLINE , | |
210 | .BR $RPLINE , | |
211 | and | |
212 | .BR $DTLINE . | |
213 | ||
214 | .B COMPATIBILITY WARNING: | |
215 | Internet addresses can legitimately start with a slash or vertical bar. | |
216 | .B dot-forward | |
217 | treats anything with an unquoted @ as an address. | |
218 | sendmail | |
219 | appears to have various problems coping with these addresses, | |
220 | and with commands that contain @ signs. | |
221 | .SH "COMMENTS" | |
222 | Any line in | |
223 | .I file | |
224 | that begins with # is ignored: | |
225 | ||
226 | .EX | |
227 | # this is a comment | |
228 | .EE | |
229 | ||
230 | .B COMPATIBILITY WARNING: | |
231 | Versions of | |
232 | sendmail | |
233 | before V8 did not allow comments in | |
234 | .B .forward | |
235 | files. | |
236 | .SH VERSION | |
237 | This is | |
238 | .B dot-forward | |
239 | 0.71. | |
240 | The | |
241 | .B dot-forward | |
242 | home page is | |
243 | .BR http://pobox.com/~djb/dot-forward.html . | |
244 | .SH "SEE ALSO" | |
245 | qmail-header(5), | |
246 | dot-qmail(5) |