changes.ps

早期freebsd实现

321 R(recei)156 333 Q 1.698 -.15(ve o)-.25 H 1.398(ne of these things.).15 F
-1.11(Ve)6.398 G 1.398(rsion 8 is slightly more generous than the standards)
1.11 F .753(suggest; instead of stripping of)156 345 R 3.253(fa)-.25 G .753
(ll the route addressees, it only strips hosts of)293.115 345 R 3.254(fu)-.25 G
3.254(pt)487.966 345 S(o)499 345 Q 1.29(the one before the last one kno)156 357
R 1.289(wn to DNS, thus allo)-.25 F 1.289(wing you to ha)-.25 F 1.589 -.15
(ve p)-.2 H(seudo-hosts).15 E(such as foo.BITNET)156 369 Q 5(.T)-.74 G
(he `R' option will turn this of)251.91 369 Q(f.)-.25 E
(The areas in which sendmail is not `)102 385.2 Q(`unconditionally compliant')
-.74 E 2.5('a)-.74 G(re:)367.43 385.2 Q 26.5(\2475.2.6 Sendmail)102 401.4 R
(does do header munging.)2.5 E 21.5(\2475.2.10 Sendmail)102 417.6 R(doesn')3.2
E 3.2(ta)-.18 G -.1(lwa)233.88 417.6 S .7(ys use the e).1 F .701
(xact SMTP message te)-.15 F .701(xt from RFC 821.)-.15 F .701(This is a)5.701
F(rather silly requirement.)156 429.6 Q 19(\2475.3.1.1 Sendmail)102 445.8 R
(doesn')3.512 E 3.512(tg)-.18 G 1.012
(uarantee only one connect for each host on queue runs.)235.064 445.8 R
(Connec-)6.011 E(tion caching gi)156 457.8 Q -.15(ve)-.25 G 2.5(sy).15 G
(ou most of this, b)235.87 457.8 Q(ut it does not pro)-.2 E(vide a guarantee.)
-.15 E 19(\2475.3.1.1 Sendmail)102 474 R(doesn')2.843 E 2.843(ta)-.18 G -.1
(lwa)233.166 474 S .343(ys pro).1 F .343(vide an adequate limit on concurrenc)
-.15 F 4.144 -.65(y. T)-.15 H .344(hat is, there can).65 F .757(be se)156 486 R
-.15(ve)-.25 G .757(ral independent sendmails running at once.).15 F .757
(My feeling is that doing an abso-)5.757 F 1.047(lute limit w)156 498 R 1.047
(ould be a mistak)-.1 F 3.547(e\()-.1 G 1.048(it might result in lost mail\).)
284.302 498 R(Ho)6.048 E(we)-.25 E -.15(ve)-.25 G 1.848 -.4(r, i).15 H 3.548
(fy).4 G 1.048(ou use the)461.354 498 R .801(XLA contrib)156 510 R .801
(uted softw)-.2 F .801(are, most of this will be guaranteed \(b)-.1 F .801
(ut I don')-.2 F 3.3(tg)-.18 G .8(uarantee the)454.61 510 R(guarantee\).)156
522 Q F0 2.5(2.3. Extended)87 546 R(SMTP Support)2.5 E F1 -1.11(Ve)127 562.2 S
.154(rsion 8 includes both sending and recei)1.11 F .155
(ving support for Extended SMTP support as de\214ned)-.25 F .229(by RFC 1425 \
\(basic\) and RFC 1427 \(SIZE\); and limited support for RFC 1426 \(BOD)102
574.2 R 2.729(Y\). The)-.55 F(body)2.729 E .275(support is minimal because the\
 \2318BITMIME\232 body type is not currently adv)102 586.2 R 2.776
(ertised. Although)-.15 F(such)2.776 E 3.076(ab)102 598.2 S .576
(ody type will be accepted, it will not be correctly con)114.516 598.2 R -.15
(ve)-.4 G .576(rted to 7 bits if speaking to a non-8-bit-).15 F(MIME a)102
610.2 Q -.1(wa)-.15 G(re SMTP serv).1 E(er)-.15 E(.)-.55 E/F2 10/Times-Italic@0
SF(Sendmail)127 626.4 Q F1 .287(tries to speak ESMTP if you ha)2.787 F .588
-.15(ve t)-.2 H .288(he `a' \215ag set in the \215ags for the mailer descrip-)
.15 F(tor)102 638.4 Q 3.322(,o)-.4 G 3.322(ri)123.532 638.4 S 3.322(ft)132.964
638.4 S .822(he other end adv)142.396 638.4 R .822(ertises the f)-.15 F .822
(act that it speaks ESMTP)-.1 F 5.822(.T)-1.11 G .821
(his is a non-standard adv)376.446 638.4 R(ertise-)-.15 E(ment:)102 650.4 Q F2
(sendmail)2.98 E F1 .48(announces \231ESMTP spok)2.98 F .48
(en here\232 during the initial connection message, and client)-.1 F .587
(sendmails search for this message.)102 662.4 R .586
(This creates some problems for some PC-based mailers, which)5.586 F
(do not understand tw)102 674.4 Q
(o-line greeting messages as required by RFC 821.)-.1 E EP
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/F0 10/Times-Bold@0 SF 294.65(4C)72 60 S(hanges in Sendmail V)378.87 60 Q
(ersion 8)-1 E 2.5(2.4. Eight-Bit)87 96 R(Clean)2.5 E/F1 10/Times-Roman@0 SF
(Pre)127 112.2 Q 1.263(vious v)-.25 F 1.263
(ersions of sendmail used the 0200 bit for quoting.)-.15 F 1.264(This v)6.264 F
1.264(ersion a)-.15 F -.2(vo)-.2 G 1.264(ids that use.).2 F(Ho)102 124.2 Q(we)
-.25 E -.15(ve)-.25 G 1.119 -.4(r, y).15 H .318
(ou can set option `7' to get se).4 F -.15(ve)-.25 G 2.818(nb).15 G .318
(it stripping for compatibility with RFC 821, which is)290.046 124.2 R 2.5(a7)
102 136.2 S(-bit protocol.)113.94 136.2 Q(This option says `)5 E
(`strip to 7 bits on input')-.74 E('.)-.74 E(Indi)127 152.4 Q .375
(vidual mailers can still produce se)-.25 F -.15(ve)-.25 G 2.875(nb).15 G .376
(it out put using the `7' mailer \215ag.)303.02 152.4 R .376(This \215ag says)
5.376 F -.74(``)102 164.4 S(strip to 7 bits on output').74 E('.)-.74 E F0 2.5
(2.5. User)87 188.4 R(Database)2.5 E F1 1.926
(The User Database \(UDB\) is an as-yet e)127 204.6 R 1.926
(xperimental attempt to pro)-.15 F 1.925(vide uni\214ed lar)-.15 F(ge-site)-.18
E .396(name support.)102 216.6 R 1.996 -.8(We a)5.396 H .396
(re installing it at Berk).8 F(ele)-.1 E .396(y; future v)-.15 F .396
(ersions may sho)-.15 F 2.897(ws)-.25 G .397(igni\214cant modi\214cations.)
406.373 216.6 R(Brie\215y)102 228.6 Q 3.583(,U)-.65 G 1.083
(DB contains a database that is intended to contain all the per)142.433 228.6 R
1.082(-user information for your)-.2 F -.1(wo)102 240.6 S .172
(rkgroup, such as people').1 F 2.673(sf)-.55 G .173
(ull names, their .plan information, their outgoing mail name, and their)222.29
240.6 R(mail drop.)102 252.6 Q .438(The user database allo)127 268.8 R .438
(ws you to map both incoming and outgoing addresses, much lik)-.25 F 2.937(eI)
-.1 G -.4(DA)487.46 268.8 S(.).4 E(Ho)102 280.8 Q(we)-.25 E -.15(ve)-.25 G
1.799 -.4(r, t).15 H .999(he interf).4 F .999(ace is still better with ID)-.1 F
.999(A; in particular)-.4 F 3.499(,t)-.4 G 1
(he alias \214le with incoming/outgoing)355.55 280.8 R(marks pro)102 292.8 Q
(vides better locality of information.)-.15 E F0 2.5(2.6. Impr)87 316.8 R -.1
(ove)-.18 G 2.5(dB).1 G(IND Support)158.01 316.8 Q F1 .262
(The BIND support, particularly for MX records, had a number of anno)127 333 R
.261(ying `)-.1 F(`features')-.74 E 2.761('w)-.74 G(hich)486.78 333 Q(ha)102
345 Q 1.212 -.15(ve b)-.2 H .912(een remo).15 F -.15(ve)-.15 G 3.412(di).15 G
3.412(nt)187.116 345 S .912(his release.)198.308 345 R .912(In particular)5.912
F 3.412(,t)-.4 G .912(hese more tightly bind \(pun intended\) the name)307.916
345 R(serv)102 357 Q(er to sendmail, so that the name serv)-.15 E
(er resolution rules are incorporated directly into sendmail.)-.15 E .688
(The major change has been that the $[ ... $] operator didn')127 373.2 R 3.188
(tf)-.18 G .688(ully qualify names that were in)376.41 373.2 R
(DNS as A or MX records.)102 385.2 Q -1.11(Ve)5 G
(rsion 8 does this quali\214cation.)1.11 E .429(This has pro)127 401.4 R -.15
(ve)-.15 G 2.929(nt).15 G 2.929(ob)197.147 401.4 S 2.929(ea)210.076 401.4 S
2.929(na)221.885 401.4 S(nno)234.254 401.4 Q .43
(yance in Sun shops, who often still run without BIND support.)-.1 F(Ho)102
413.4 Q(we)-.25 E -.15(ve)-.25 G 1.001 -.4(r, i).15 H 2.701(ti).4 G 2.701(sr)
153.842 413.4 S .201
(eally critical that this be supported, since MX records are mandatory)163.763
413.4 R 5.2(.I)-.65 G 2.7(nS)450.26 413.4 S .2(unOS you)463.52 413.4 R .101
(can choose either MX support or NIS support, b)102 425.4 R .101(ut not both.)
-.2 F .101(This is \214x)5.101 F .101(ed in Solaris, and some)-.15 F/F2 10
/Times-Italic@0 SF(send-)2.602 E(mail)102 437.4 Q F1(support to allo)2.5 E 2.5
(wt)-.25 G(his in SunOS should be forthcoming in a future release.)192.31 437.4
Q F0 2.5(2.7. K)87 461.4 R(ey)-.25 E(ed Files)-.1 E F1 .242(Generalized k)127
477.6 R -.15(ey)-.1 G .242(ed \214les is an idea tak).15 F .241
(en directly from ID)-.1 F 2.741(As)-.4 G .241
(endmail \(albeit with a completely)368.606 477.6 R(dif)102 489.6 Q
(ferent implementation\).)-.25 E(The)5 E 2.5(yc)-.15 G(an be useful on lar)
239.63 489.6 Q(ge sites.)-.18 E -1.11(Ve)127 505.8 S
(rsion 8 includes the follo)1.11 E(wing b)-.25 E(uilt-in map classes:)-.2 E
33.72(dbm Support)102 522 R(for the ndbm\(3\) library)2.5 E(.)-.65 E 33.17
(hash Support)102 538.2 R 1.229(for the `)3.729 F(`Hash')-.74 E 3.729('t)-.74 G
1.229(ype from the ne)261.636 538.2 R 3.729(wB)-.25 G(erk)345.732 538.2 Q(ele)
-.1 E 3.729(yd)-.15 G 1.229(b\(3\) library)383.641 538.2 R 6.23(.t)-.65 G 1.23
(his library pro-)441.55 538.2 R 4.094(vides substantially better database sup\
port than ndbm\(3\), including in-memory)156 550.2 R
(caching, arbitrarily long k)156 562.2 Q -.15(ey)-.1 G 2.5(sa).15 G(nd v)279.89
562.2 Q(alues, and better disk utilization.)-.25 E 31.51(btree Support)102
578.4 R .547(for the `)3.047 F(`B-T)-.74 E(ree')-.35 E 3.047('t)-.74 G .547
(ype from the ne)266.328 578.4 R 3.048(wB)-.25 G(erk)347.698 578.4 Q(ele)-.1 E
3.048(yd)-.15 G .548(b\(3\) library)384.926 578.4 R 5.548(.B)-.65 G(-T)445.362
578.4 Q .548(rees pro)-.35 F(vide)-.15 E .521(better clustering than Hashed \
\214les if you are fetching lots of records that ha)156 590.4 R .821 -.15(ve s)
-.2 H(imilar).15 E -.1(ke)156 602.4 S(ys, such as searching a dictionary for w)
-.05 E(ords be)-.1 E(ginning with `)-.15 E(`detr')-.74 E('.)-.74 E 39.83
(nis Support)102 618.6 R(for NIS \(a.k.a. YP\) maps.)2.5 E
(NIS+ is not supported in this v)5 E(ersion.)-.15 E 34.83(host Support)102
634.8 R(for DNS lookups.)2.5 E 19.84(dequote A)102 651 R -.74(``)2.642 G
(pseudo-map').74 E 2.642('\()-.74 G .142(that is, once that does not ha)232.554
651 R .442 -.15(ve a)-.2 H .442 -.15(ny ex).15 H .142(ternal data\) that allo)
.15 F .142(ws a con-)-.25 F .099
(\214guration \214le to break apart a quoted string in the address.)156 663 R
.098(This is necessary primarily)5.098 F .726
(for DECnet addresses, which often ha)156 675 R 1.026 -.15(ve q)-.2 H .726
(uoted addresses that need to be unwrapped).15 F(on g)156 687 Q(ate)-.05 E -.1
(wa)-.25 G(ys.).1 E EP
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/F0 10/Times-Bold@0 SF(Changes in Sendmail V)72 60 Q(ersion 8)-1 E(5)499 60 Q
2.5(2.8. Multi-W)87 96 R(ord Classes & Macr)-.75 E(os in Classes)-.18 E/F1 10
/Times-Roman@0 SF(Classes can no)127 112.2 Q 2.5(wb)-.25 G 2.5(em)200.35 112.2
S(ultiple w)215.07 112.2 Q 2.5(ords. F)-.1 F(or e)-.15 E(xample,)-.15 E
(CShofmann.CS.Berk)142 128.4 Q(ele)-.1 E -.65(y.)-.15 G(EDU).65 E(allo)102
144.6 Q 2.395(ws you to match the entire string `)-.25 F(`hofmann.CS.Berk)-.74
E(ele)-.1 E -.65(y.)-.15 G(EDU').65 E 4.894('u)-.74 G 2.394
(sing the single construct)399.878 144.6 R -.74(``)102 156.6 S($=S').74 E('.)
-.74 E(Class de\214nitions are no)127 172.8 Q 2.5(wa)-.25 G(llo)234.52 172.8 Q
(wed to include macros \212 for e)-.25 E(xample:)-.15 E(Cw$k)142 189 Q(is le)
102 205.2 Q -.05(ga)-.15 G(l.).05 E F0 2.5(2.9. IDENT)87 229.2 R(Pr)2.5 E
(otocol Support)-.18 E F1 .633
(The IDENT protocol as de\214ned in RFC 1413 [RFC1413] is supported.)127 245.4
R(Ho)5.633 E(we)-.25 E -.15(ve)-.25 G 1.433 -.4(r, m).15 H(an).4 E 3.134(ys)
-.15 G(ys-)491.78 245.4 Q .909(tems ha)102 257.4 R 1.209 -.15(ve a T)-.2 H .909
(CP/IP b).15 F .908
(ug that renders this useless, and the feature must be turned of)-.2 F 3.408
(f. Roughly)-.25 F 3.408(,i)-.65 G(f)500.67 257.4 Q 8.538
(one of these system recei)102 269.4 R -.15(ve)-.25 G 11.038(sa\231).15 G 8.539
(No route to host\232 message \(ICMP message)280.568 269.4 R(ICMP_UNREA)102
281.4 Q .829(CH_HOST\) on)-.4 F/F2 10/Times-Italic@0 SF(any)3.329 E F1 .828
(connection, all connections to that host are closed.)3.329 F .828
(Some \214re-)5.828 F -.1(wa)102 293.4 S .087
(lls return this error if you try to connect to the IDENT port, so you can').1
F 2.587(tr)-.18 G(ecei)408.889 293.4 Q .387 -.15(ve e)-.25 H .087
(mail from these).15 F 1.712(hosts on these systems.)102 305.4 R(It')6.712 E
4.212(sp)-.55 G 1.712(ossible that if the \214re)228.62 305.4 R -.1(wa)-.25 G
1.712(ll used a more speci\214c message \(such as).1 F(ICMP_UNREA)102 317.4 Q
(CH_PR)-.4 E -1.88 -.4(OT O)-.4 H 72.325(COL, ICMP_UNREA).4 F(CH_POR)-.4 E
74.825(To)-.6 G(r)500.67 317.4 Q(ICMP_UNREA)102 329.4 Q(CH_NET_PR)-.4 E
(OHIB\) it w)-.4 E(ould w)-.1 E(ork, b)-.1 E(ut this hasn')-.2 E 2.5(tb)-.18 G
(een v)375.62 329.4 Q(eri\214ed.)-.15 E .678(IDENT protocol support cannot be \
used on 4.3BSD, Apollo DomainOS, Apple A/UX, Con-)127 345.6 R -.15(vex)102
357.6 S 1.405(OS, Data General DG/UX, HP-UX, Sequent Dynix, or Ultrix.).15 F
1.405(It seems to w)6.405 F 1.405(ork on 4.4BSD,)-.1 F
(IBM AIX 3.x, OSF/1, SGI IRIX, Solaris, and SunOS.)102 369.6 Q F0 2.5
(2.10. Separate)87 393.6 R(En)2.5 E -.1(ve)-.4 G(lope/Header Pr).1 E(ocessing)
-.18 E F1 .854(Since the From: line is passed in separately from the en)127
409.8 R -.15(ve)-.4 G .854(lope sender).15 F 3.354(,t)-.4 G .854(hese ha)
420.978 409.8 R 1.154 -.15(ve b)-.2 H .854(oth been).15 F .427
(made visible; the $g macro is set to the en)102 421.8 R -.15(ve)-.4 G .428
(lope sender during processing of mailer ar).15 F .428(gument v)-.18 F(ec-)-.15
E(tors and the header sender during processing of headers.)102 433.8 Q .085
(It is also possible to specify separate per)127 450 R .085(-mailer en)-.2 F
-.15(ve)-.4 G .084(lope and header processing.).15 F .084(The Sender)5.084 F(-)
-.2 E -.55(RW)102 462 S 1.085(Set and RecipientR).55 F 1.085(Wset ar)-.55 F
1.085(guments for mailers can be speci\214ed as `)-.18 F(`en)-.74 E -.15(ve)-.4
G(lope/header').15 E 3.585('t)-.74 G 3.585(og)478.595 462 S -2.15 -.25(iv e)
492.18 462 T(dif)102 474 Q(ferent re)-.25 E(writings for en)-.25 E -.15(ve)-.4
G(lope v).15 E(ersus header addresses.)-.15 E F0 2.5(2.11. Owner)87 498 R
(-List Pr)-.37 E(opagates to En)-.18 E -.1(ve)-.4 G(lope).1 E F1 1.168
(When an alias has an associated o)127 514.2 R(wner)-.25 E 1.168
(-list name, that alias is used to change the en)-.2 F -.15(ve)-.4 G(lope).15 E
(sender address.)102 526.2 Q(This will cause do)5 E
(wnstream errors to be returned to that o)-.25 E(wner)-.25 E(.)-.55 E 1.813
(Some people \214nd this confusing because the en)127 542.4 R -.15(ve)-.4 G
1.813(lope sender is what appears in the \214rst).15 F -.74(``)102 554.4 S
(From_').74 E 3.127('l)-.74 G .627(ine in UNIX messages \(that is, the line be)
146.417 554.4 R .627(ginning `)-.15 F(`From<space>')-.74 E 3.127('i)-.74 G .627
(nstead of `)424.797 554.4 R(`From:')-.74 E(';)-.74 E .502
(the latter is the header from, which)102 566.4 R F2(does)3.002 E F1 .503
(indicate the sender of the message\).)3.002 F .503(In pre)5.503 F .503
(vious v)-.25 F(ersions,)-.15 E F2(sendmail)102 578.4 Q F1 .057(has tried to a)
2.557 F -.2(vo)-.2 G .057(id changing the en).2 F -.15(ve)-.4 G .056
(lope sender for back compatibility with UNIX con).15 F -.15(ve)-.4 G(n-).15 E
.177(tion; at this point that back compatibility is creating too man)102 590.4
R 2.678(yp)-.15 G .178(roblems, and it is necessary to mo)357.972 590.4 R -.15
(ve)-.15 G(forw)102 602.4 Q(ard into the 1980s.)-.1 E F0 2.5(2.12. Command)87
626.4 R(Line Flags)2.5 E F1(The)127 642.6 Q F0<ad42>2.5 E F1
(\215ag has been added to pass in body type information.)2.5 E(The)127 658.8 Q
F0<ad70>3.057 E F1 .557