There is no deliberate connection between the authentication method and automatic-bcc... but bugs make fools of us all.
Are all of your tests using the same user? If you can send me details off-list, I can investigate further. Brandon On Sat, Oct 16, 2021 at 11:58 PM Kostya Vasilyev via mailop < mailop@mailop.org> wrote: > Well no, this one is different. > > It depends on whether the mail app uses OAUTH2 and on how recently this > app was registered on Google Cloud. > > When such mail app is detected, Gmail will not automatically file messages > submitted via SMTP into the Sent folder, as it's done for decades. > > This must be a deliberate change. Unfortunately as a side effect of this > change, messages to self are silently dropped. > > Still hoping to get the attention of someone from Google, anyone out here? > > -- > Kostya Vasilyev > k...@fastmail.com > > On Sat, Oct 16, 2021, at 10:48 PM, Jarland Donnell via mailop wrote: > > I've had customers repeatedly approach me about a similar issue and I > > ended up writing this in mass response: > > > https://mxroute.com/docs/im-forwarding-or-retrieving-email-to-at-gmail-and-when-i-send-a-test-email-from-the-same-address-that-will-ultimately-be-receiving-it-it-doesnt-work/ > > > > I could probably argue that there's a logical case for not duplicating > > an email that someone sent to themselves by displaying it in two folders > > by default. I don't see people email themselves very often for any > > purpose other than testing. > > > > On 2021-10-16 12:57, Kostya Vasilyev via mailop wrote: > >> Anyone from Google here? > >> > >> I'm seeing a bug where messages sent to same Gmail account (same from > >> and to @gmail.com address) are accepted by smtp.gmail.com but are > >> never delivered, dropped instead. > >> > >> This happens if: > >> > >> - Messages are sent using a mail app using IMAP / SMTP > >> - Mail app uses OAUTH2 for authentication > >> - Mail app was created / registered on Google Cloud some time inside > >> the last two years > >> - The user saves the message to Drafts before sending > >> > >> Apps using "less secure" (login / password) auth are not affected. > >> Apps using OAUTH2 but registered a long(er) time ago are not affected. > >> > >> So basically any new mail app that tries to follow Google's > >> recommended OAUTH2 will be seen by users as broken (can't send > >> messages to yourself, which people do). > >> > >> Feel free to contact me directly for more info. > > _______________________________________________ > > mailop mailing list > > mailop@mailop.org > > https://list.mailop.org/listinfo/mailop > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop >
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