Re: [mailop] What's the point of secondary MX servers?

2020-12-19 Thread Ángel via mailop
On 2020-12-18 at 15:58 +0100, Jaroslaw Rafa via mailop wrote: > > SendGrid. They have a webpage that says "We continue to retry > > messages for up to 72 hours," but they (sometimes?) don't. > > They do for most customers, but for some they don't. > > I remember this issue with password change

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread John Levine via mailop
In article <20201219223035.ga4...@rafa.eu.org> you write: >Dnia 19.12.2020 o godz. 16:51:56 John Levine via mailop pisze: >> Pursuant to our unconditional satisfaction guarantee, please find >> enclosed a check for 200% of the amount you have paid Gmail to handle >> your mail. > >Please note that

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread Chris via mailop
For a couple of years, the Usenet link to/from Australia were magtape exchanges on a routine NASA flight out of, if I remember right, NASA Ames. It was piggybacked on the shipment of data to/from joint NASA-Australia projects. I used to correspond occasionally with the guy involved in doing

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread Jaroslaw Rafa via mailop
Dnia 19.12.2020 o godz. 15:52:21 Bob Proulx via mailop pisze: > Plus the SMTP protocol has never tried to be an end user visible > protocol. Which, if implemented over Avian Carriers, might be > unappealing to the consumer. Even if the cost is only bird seed. The > diagrams in RFC 2549 I find

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread Bob Proulx via mailop
Sam Tuke via mailop wrote: > With Gmail's self filtering folders, for many smaller hosts the > chances of a message which gets a 250 response code being "received" > (reach the eyeballs of the intended recipient) is lower than not. So > 250 says more about Gmail internals (e.g. the message wasn't

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread Jaroslaw Rafa via mailop
Dnia 19.12.2020 o godz. 16:51:56 John Levine via mailop pisze: > Pursuant to our unconditional satisfaction guarantee, please find > enclosed a check for 200% of the amount you have paid Gmail to handle > your mail. Please note that not only "Gmail" as understood by the free mail service did not

Re: [mailop] nolisting, was What's the point of secondary MX servers?

2020-12-19 Thread Chris via mailop
On 2020-12-19 16:43, John Levine via mailop wrote: In article <12329a9a-11a7-eda4-c88a-3dc352aea...@spamtrap.tnetconsulting.net> you write: On 12/18/20 12:29 PM, John Levine via mailop wrote: As I recall some sites were getting stuck on the nolist host for every message. Odd. Perhaps it

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread John Levine via mailop
In article <0ea1d827-98d8-761d-cac4-4be972126...@lightmeter.io> you write: >That's nice to know, but the fact is that messages accepted by Gmail sometimes >disappear without a trace. No >doubt that the systems involved on your side are massive and complex, but that >shouldn't be our problem as

Re: [mailop] What's the point of secondary MX servers?

2020-12-19 Thread John Levine via mailop
In article <142c9278-dfe9-4dfc-70ab-50dc27264...@linkedin.com> you write: > >It may not be as common, but I don't see a reason to remove the option. Oh, I agree, it's not going away and it usually doesn't hurt (much). In the past I have done surveys of mail servers to see what features they

Re: [mailop] nolisting, was What's the point of secondary MX servers?

2020-12-19 Thread John Levine via mailop
In article <12329a9a-11a7-eda4-c88a-3dc352aea...@spamtrap.tnetconsulting.net> you write: > >On 12/18/20 12:29 PM, John Levine via mailop wrote: >> As I recall some sites were getting stuck on the nolist host for >> every message. > >Odd. > >Perhaps it has something to do with the type of

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread Robert L Mathews via mailop
On 12/19/20 9:27 AM, Sam Tuke via mailop wrote: > That's nice to know, but the fact is that messages accepted by Gmail > sometimes disappear without a trace. In my experience of investigating a few of these in detail, this is not actually the case. Instead, what happens is that the Gmail

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread Sam Tuke via mailop
On 18/12/2020 23:00, Brandon Long wrote: > So, returning 250 OK when delivering a message to spam is bad form > now? Or a 4xx response to potential spam that you're not quite sure > about? With Gmail's self filtering folders, for many smaller hosts the chances of a message which gets a 250

Re: [mailop] Why 5xx? (was: GMail 550 5.1.1)

2020-12-19 Thread Chris via mailop
On 2020-12-15 18:04, Chris Wedgwood via mailop wrote: things break, it happens... but why 5xx (vs 4xx) in this case? this means means emails are being lost, some of won't/can't be resent and recovered with 4xx most of them would be delivered once things come right the confidence in a

Re: [mailop] GMail 550 5.1.1?

2020-12-19 Thread Brandon Long via mailop
So, returning 250 OK when delivering a message to spam is bad form now? Or a 4xx response to potential spam that you're not quite sure about?  Also, there is no provision in our spam system for dropping mail, it's reject, deliver or bounce... I guess workspace does add administrator actions