Question

Failed to start TLS: 421 Local Error, closing transmission channel

score 45 · Answer 1 · 2024-03-02T10:03:20.017000

45

Views

Failed to start TLS: 421 Local Error, closing transmission channel

Published on 02 March 2024 at 10:03

score 257 · Answer 2 · 2024-02-20T09:21:00.047000

257

Views

Office365 SMTP Mail Error on Auth: 535 5.7.139 Authentication unsuccessful. (Works fine locally)

Published on 20 February 2024 at 09:21

score 32 · Answer 3 · 2024-02-16T09:12:08.917000

32

Views

SMTP Details are correct but getting authentication error

Published on 16 February 2024 at 09:12

score 52 · Answer 4 · 2024-02-14T23:08:18.650000

52

Views

Authentication failure for AWS SMTP on Android 64

Published on 14 February 2024 at 23:08

score 26 · Answer 5 · 2024-02-13T07:51:44.810000

26

Views

Mailtrain-AWS SES: The security token included in the request is invalid

Published on 13 February 2024 at 07:51

score 50 · Answer 6 · 2024-01-06T21:55:10.863000

50

Views

GoogleAPI service account OAuth2 authentication fails with 'Syntax error'

Published on 06 January 2024 at 21:55

score 34 · Answer 7 · 2023-12-31T05:33:08.940000

34

Views

Python smtplib: Unable to send email from gmail to yahoo due to TimeoutError and SMTPConnectError

Published on 31 December 2023 at 05:33

score 36 · Answer 8 · 2023-12-23T19:16:55.713000

36

Views

How to configure SMTPServer options with pem key and cert?

Published on 23 December 2023 at 19:16

score 50 · Answer 9 · 2023-12-13T13:37:58.653000

50

Views

is there a documented list of objSMTP.Configuration.Fields.Item s somewhere

Published on 13 December 2023 at 13:37

score 196 · Answer 10 · 2023-11-30T07:49:35.310000

196

Views

why SMTP error?. when i run on localhost it works. but when i put on my server SMTP error. can someone explains?

Published on 30 November 2023 at 07:49

score 387 · Answer 11 · 2023-11-17T20:05:50.103000

387

Views

Trying to authenticate with smtp.gmail.com via XOAUTH2

Published on 17 November 2023 at 20:05

score 171 · Answer 12 · 2023-11-17T14:27:30.167000

171

Views

Trying to send email using outlook credentials in python

Published on 17 November 2023 at 14:27

score 248 · Answer 13 · 2023-11-14T21:24:30.430000

248

Views

Scopes confusion using SMTP to send email using my Gmail account with XOAUTH2

Published on 14 November 2023 at 21:24

score 61 · Answer 14 · 2023-10-17T13:18:31.520000

61

Views

OAuth2 MS and Google differences regarding public or confidential client

Published on 17 October 2023 at 13:18

score 587 · Answer 15 · 2023-10-15T16:25:36.833000

587

Views

"Authentication unsuccessful", SMTP, basic auth, Microsoft 365 email

Published on 15 October 2023 at 16:25

score 80 · Answer 16 · 2023-10-13T12:12:56.523000

80

Views

Set password to access postfix running on macos

Published on 13 October 2023 at 12:12

score 104 · Answer 17 · 2023-10-05T10:47:34.663000

104

Views

SMTP with google xoauth2 results in error {"status":"400","schemes":"Bearer","scope":"https://mail.google.com/"}

Published on 05 October 2023 at 10:47

score 48 · Answer 18 · 2023-09-26T21:43:22.253000

48

Views

one of my 2 postfix servers generate a smtp RENEGOTIATING error with authentication

Published on 26 September 2023 at 21:43

score 286 · Answer 19 · 2023-08-17T14:30:38.360000

286

Views

Sending and reading email using python

Published on 17 August 2023 at 14:30

score 138 · Answer 20 · 2023-08-07T18:23:07.060000

138

Views

How to make M365 SMTP relay work on web app

Published on 07 August 2023 at 18:23

List Question

Failed to start TLS: 421 Local Error, closing transmission channel

Office365 SMTP Mail Error on Auth: 535 5.7.139 Authentication unsuccessful. (Works fine locally)

SMTP Details are correct but getting authentication error

Authentication failure for AWS SMTP on Android 64

Mailtrain-AWS SES: The security token included in the request is invalid

GoogleAPI service account OAuth2 authentication fails with 'Syntax error'

Python smtplib: Unable to send email from gmail to yahoo due to TimeoutError and SMTPConnectError

How to configure SMTPServer options with pem key and cert?

is there a documented list of objSMTP.Configuration.Fields.Item s somewhere

why SMTP error?. when i run on localhost it works. but when i put on my server SMTP error. can someone explains?

Trying to authenticate with smtp.gmail.com via XOAUTH2

Trying to send email using outlook credentials in python

Scopes confusion using SMTP to send email using my Gmail account with XOAUTH2

OAuth2 MS and Google differences regarding public or confidential client

"Authentication unsuccessful", SMTP, basic auth, Microsoft 365 email

Set password to access postfix running on macos

SMTP with google xoauth2 results in error {"status":"400","schemes":"Bearer","scope":"https://mail.google.com/"}

one of my 2 postfix servers generate a smtp RENEGOTIATING error with authentication

Sending and reading email using python

How to make M365 SMTP relay work on web app

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