On 29/09/13 14:58, Martin Nicholas wrote:
> I use this line in my ACL config to add a header for our internal use:
> add_header = X-tvScience-SendingHost: $sender_host_address $acl_c_ht $acl_c_cc
>
> Recently a mail thus processed and forwarded was rejected by Gmail:
> 550-5.7.1 [77.74.196.254 11] Our system has detected that this message is
> 550-5.7.1 not RFC 2822 compliant. To reduce the amount of spam sent to Gmail,
> 550-5.7.1 this message has been blocked. Please review
> 550 5.7.1 RFC 2822 specifications for more information. un7si4022492wjc.70 - gsmtp
>
> Upon investigation I found this in the headers:
> X-CTCH-Spam: =?utf-8?B?VW5rbm93bm4xNzUscnVsZXM9TEVPX09CRlVfU1VCSl9SRSwgX19CT1VOQ0VfQ0hBTExFTkdFX1NVQkosIF9fQk9VTkNFX05EUl9TVUJKX0VYRU1QVCwgX19IQVNfRlJPTSwgX19QSElTSF9GUk9NMiwgX19GUkFVRF9XRUJNQUlMX0ZST00sIF9fQ1QsIF9fQ1RZUEVfTVVMVE
> lQQVJUX0FMVCwgX19DVFlQRV9IQVNfQk9VTkRBUlksIF9fQ1RZUEVfTVVMVElQQVJULCBDVFlQRV9NVUxUSVBBUlRfTk9fUVVPVEUsIF9fSEFTX1hfTUFJTEVSLCBfX0lOX1JFUF9UTywgX19IQVNfTVNHSUQsIF9fU0FORV9NU0dJRCwgX19NU0dJRF9BUFBMRU1BSUwsIF9fVE9fTUFMRk9STUVEXzIsIF9
> fQ1RFLCBfX01JTUVfVkVSU0lPTiwgTUlNRV9MT1dFUl9DQVNFLCBfX0FOWV9VUkksIF9fVVJJX05PX1BBVEgsIF9fU1RPQ0tfUEhSQVNFXzI0LCBfX1NUT0NLX1BIUkFTRV82LCBfX1NVQkpfQUxQSEFfTkVHQVRFLCBfX0lOVF9QUk9EX0xPQywgX19ISUdIQklUUywgU1VQRVJMT05HX0xJTkUsIF9fRk9S
> V0FSREVEX01TRywgX19IQVNfSFRNTCwgQk9EWVRFWFRQX1NJWkVfMzAwMF9MRVNTLCBCT0RZX1NJWkVfMzAwMF8zOTk5LCBCT0RZVEVYVEhfU0laRV8xMDAwMF9MRVNTLCBfX01JTUVfSFRNTCwgX19UQUdfRVhJU1RTX0hUTUwsIF9fU1RZTEVfUkFUV0FSRV9ORUcsIF9fUkROU19QT09MRURfNywgX19SR
> E5TX0JST0FEQkFORF8zLCBfX1VSSV9OUywgU1hMX0lQX0RZTkFNSUNbMTc1LjIxNC4yMDcuOTAuZnVyXSw
> X-tvScience-SendingHost: 65.20.0.122 smtpout02.bt.lon5.cpcloud.co.uk us
>
> gSFRNTF81MF83MCwgQk9EWV9TSVpFXzUwMDBfTEVTUywgUkROU19CUk9BREJBTkQsIFJETlNfUE9PTEVELCBSRE5TX1NVU1BfU1BFQ0lGSUMsIF9fUEhJU0hfRlJPTSwgUkROU19TVVNQLCBfX0ZSQVVEX1dFQk1BSUwsIEJPRFlfU0laRV83MDAwX0xFU1MHA8AB?=
> X-Junkmail-Premium-Raw: ...
>
> Looks to me like the "X-CTCH-Spam:" was once a very long header line, a _single_ line indeed,
> which has been molested by exim and in so doing has pushed the subsequent headers into
> the body of the mail by adding a blank line.
As Lena says, over-long. However, I think Exim messing up in that way
is a bug; please log one. A packaged reproducer would be very welcome!
--
Cheers,
Jeremy
