1Accept 2Accept-Additions 3Accept-Charset 4Accept-Datetime 5Accept-Encoding 6Accept-Features 7Accept-Language 8Accept-Patch 9Accept-Post 10Accept-Ranges 11Access-Control 12Access-Control-Allow-Credentials 13Access-Control-Allow-Headers 14Access-Control-Allow-Methods 15Access-Control-Allow-Origin 16Access-Control-Expose-Headers 17Access-Control-Max-Age 18Access-Control-Request-Headers 19Access-Control-Request-Method 20Age 21A-IM 22Allow 23ALPN 24Also-Control 25Alternate-Recipient 26Alternates 27Alt-Svc 28Alt-Used 29Apparently-To 30Apply-To-Redirect-Ref 31Approved 32Archive 33Archived-At 34Article-Names 35Article-Updates 36Authentication-Control 37Authentication-Info 38Authentication-Results 39Authorization 40Autoforwarded 41Autosubmitted 42Auto-Submitted 43Base 44Bcc 45Body 46Cache-Control 47CalDAV-Timezones 48Cancel-Key 49Cancel-Lock 50Cc 51C-Ext 52Close 53C-Man 54Comments 55Compliance 56Connection 57Content-Alternative 58Content-Base 59Content-Description 60Content-Disposition 61Content-Duration 62Content-Encoding 63Content-features 64Content-ID 65Content-Identifier 66Content-Language 67Content-Length 68Content-Location 69Content-MD5 70Content-Range 71Content-Return 72Content-Script-Type 73Content-Style-Type 74Content-Transfer-Encoding 75Content-Type 76Content-Version 77Control 78Conversion 79Conversion-With-Loss 80Cookie 81Cookie2 82C-Opt 83Cost 84C-PEP 85C-PEP-Info 86DASL 87Date 88Date-Received 89DAV 90Default-Style 91Deferred-Delivery 92Delivery-Date 93Delta-Base 94Depth 95Derived-From 96Destination 97Differential-ID 98Digest 99Discarded-X400-IPMS-Extensions 100Discarded-X400-MTS-Extensions 101Disclose-Recipients 102Disposition-Notification-Options 103Disposition-Notification-To 104Distribution 105DKIM-Signature 106DL-Expansion-History 107Downgraded-Bcc 108Downgraded-Cc 109Downgraded-Disposition-Notification-To 110Downgraded-Final-Recipient 111Downgraded-From 112Downgraded-In-Reply-To 113Downgraded-Mail-From 114Downgraded-Message-Id 115Downgraded-Original-Recipient 116Downgraded-Rcpt-To 117Downgraded-References 118Downgraded-Reply-To 119Downgraded-Resent-Bcc 120Downgraded-Resent-Cc 121Downgraded-Resent-From 122Downgraded-Resent-Reply-To 123Downgraded-Resent-Sender 124Downgraded-Resent-To 125Downgraded-Return-Path 126Downgraded-Sender 127Downgraded-To 128EDIINT-Features 129Eesst-Version 130Encoding 131Encrypted 132Errors-To 133ETag 134Expect 135Expires 136Expiry-Date 137Ext 138Followup-To 139Forwarded 140From 141Generate-Delivery-Report 142GetProfile 143Hobareg 144Host 145HTTP2-Settings 146If 147If-Match 148If-Modified-Since 149If-None-Match 150If-Range 151If-Schedule-Tag-Match 152If-Unmodified-Since 153IM 154Importance 155Incomplete-Copy 156Injection-Date 157Injection-Info 158In-Reply-To 159Jabber-ID 160Keep-Alive 161Keywords 162Label 163Language 164Last-Modified 165Latest-Delivery-Time 166Lines 167Link 168List-Archive 169List-Help 170List-ID 171List-Owner 172List-Post 173List-Subscribe 174List-Unsubscribe 175List-Unsubscribe-Post 176Location 177Lock-Token 178Man 179Max-Forwards 180Memento-Datetime 181Message-Context 182Message-ID 183Message-Type 184Meter 185Method-Check 186Method-Check-Expires 187MIME-Version 188MMHS-Acp127-Message-Identifier 189MMHS-Authorizing-Users 190MMHS-Codress-Message-Indicator 191MMHS-Copy-Precedence 192MMHS-Exempted-Address 193MMHS-Extended-Authorisation-Info 194MMHS-Handling-Instructions 195MMHS-Message-Instructions 196MMHS-Message-Type 197MMHS-Originator-PLAD 198MMHS-Originator-Reference 199MMHS-Other-Recipients-Indicator-CC 200MMHS-Other-Recipients-Indicator-To 201MMHS-Primary-Precedence 202MMHS-Subject-Indicator-Codes 203MT-Priority 204Negotiate 205Newsgroups 206NNTP-Posting-Date 207NNTP-Posting-Host 208Non-Compliance 209Obsoletes 210Opt 211Optional 212Optional-WWW-Authenticate 213Ordering-Type 214Organization 215Origin 216Original-Encoded-Information-Types 217Original-From 218Original-Message-ID 219Original-Recipient 220Original-Sender 221Original-Subject 222Originator-Return-Address 223Overwrite 224P3P 225Path 226PEP 227Pep-Info 228PICS-Label 229Position 230Posting-Version 231Pragma 232Prefer 233Preference-Applied 234Prevent-NonDelivery-Report 235Priority 236Privicon 237ProfileObject 238Protocol 239Protocol-Info 240Protocol-Query 241Protocol-Request 242Proxy-Authenticate 243Proxy-Authentication-Info 244Proxy-Authorization 245Proxy-Connection 246Proxy-Features 247Proxy-Instruction 248Public 249Public-Key-Pins 250Public-Key-Pins-Report-Only 251Range 252Received 253Received-SPF 254Redirect-Ref 255References 256Referer 257Referer-Root 258Relay-Version 259Reply-By 260Reply-To 261Require-Recipient-Valid-Since 262Resent-Bcc 263Resent-Cc 264Resent-Date 265Resent-From 266Resent-Message-ID 267Resent-Reply-To 268Resent-Sender 269Resent-To 270Resolution-Hint 271Resolver-Location 272Retry-After 273Return-Path 274Safe 275Schedule-Reply 276Schedule-Tag 277Security-Scheme 278Sec-WebSocket-Accept 279Sec-WebSocket-Extensions 280Sec-WebSocket-Key 281Sec-WebSocket-Protocol 282Sec-WebSocket-Version 283See-Also 284Sender 285Sensitivity 286Server 287Set-Cookie 288Set-Cookie2 289SetProfile 290SIO-Label 291SIO-Label-History 292SLUG 293SoapAction 294Solicitation 295Status-URI 296Strict-Transport-Security 297Subject 298SubOK 299Subst 300Summary 301Supersedes 302Surrogate-Capability 303Surrogate-Control 304TCN 305TE 306Timeout 307Title 308To 309Topic 310Trailer 311Transfer-Encoding 312TTL 313UA-Color 314UA-Media 315UA-Pixels 316UA-Resolution 317UA-Windowpixels 318Upgrade 319Urgency 320URI 321User-Agent 322Variant-Vary 323Vary 324VBR-Info 325Version 326Via 327Want-Digest 328Warning 329WWW-Authenticate 330X400-Content-Identifier 331X400-Content-Return 332X400-Content-Type 333X400-MTS-Identifier 334X400-Originator 335X400-Received 336X400-Recipients 337X400-Trace 338X-Archived-At 339X-Device-Accept 340X-Device-Accept-Charset 341X-Device-Accept-Encoding 342X-Device-Accept-Language 343X-Device-User-Agent 344X-Frame-Options 345X-Mittente 346X-PGP-Sig 347Xref 348X-Ricevuta 349X-Riferimento-Message-ID 350X-TipoRicevuta 351X-Trasporto 352X-VerificaSicurezza 353