* null email address question [was: Re: [9front] [ports] updated zlib, libpng, libjpeg] [not found] <BB7ACCC2C36C421386B4BBD4EA97440F@ewsd.inri.net> @ 2020-08-21 17:47 ` Ethan Gardener 2020-08-21 17:55 ` Kurt H Maier 2020-08-21 20:38 ` Lyndon Nerenberg 0 siblings, 2 replies; 3+ messages in thread From: Ethan Gardener @ 2020-08-21 17:47 UTC (permalink / raw) To: 9front > NOTE: If you are using a mail server that is not RFC 2821/2822 > compliant in that it rejects or discards emails with "NULL" addresses, > you will NOT be able to complete the registration process. is there ever a legitimate use for null addresses? ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: null email address question [was: Re: [9front] [ports] updated zlib, libpng, libjpeg] 2020-08-21 17:47 ` null email address question [was: Re: [9front] [ports] updated zlib, libpng, libjpeg] Ethan Gardener @ 2020-08-21 17:55 ` Kurt H Maier 2020-08-21 20:38 ` Lyndon Nerenberg 1 sibling, 0 replies; 3+ messages in thread From: Kurt H Maier @ 2020-08-21 17:55 UTC (permalink / raw) To: 9front On Fri, Aug 21, 2020 at 06:47:53PM +0100, Ethan Gardener wrote: > > NOTE: If you are using a mail server that is not RFC 2821/2822 > > compliant in that it rejects or discards emails with "NULL" addresses, > > you will NOT be able to complete the registration process. > > is there ever a legitimate use for null addresses? There are several such messages in various RFCs, mostly delivery status and message disposition emails. They're sent with null reverse-paths to prevent nondeliverable notificiation loops. The other place null addresses show up is in emails with multiple delivery targets where something broke during populating them like To: you@example.com,me@example.com,,them@example.com,other@example.com note the 'null address' between commas in the middle. RFC2822 declares the latter to be obsolete but receivers must accept them. khm ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: null email address question [was: Re: [9front] [ports] updated zlib, libpng, libjpeg] 2020-08-21 17:47 ` null email address question [was: Re: [9front] [ports] updated zlib, libpng, libjpeg] Ethan Gardener 2020-08-21 17:55 ` Kurt H Maier @ 2020-08-21 20:38 ` Lyndon Nerenberg 1 sibling, 0 replies; 3+ messages in thread From: Lyndon Nerenberg @ 2020-08-21 20:38 UTC (permalink / raw) To: 9front Ethan Gardener writes: > is there ever a legitimate use for null addresses? DSNs, MDNs, "vacation" messages. Basically, anything where you don't want any form of delivery notification. --lyndon ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-08-21 20:38 UTC | newest]
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[not found] <BB7ACCC2C36C421386B4BBD4EA97440F@ewsd.inri.net>
2020-08-21 17:47 ` null email address question [was: Re: [9front] [ports] updated zlib, libpng, libjpeg] Ethan Gardener
2020-08-21 17:55 ` Kurt H Maier
2020-08-21 20:38 ` Lyndon Nerenberg
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