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Auth Plain problem [closed]

asked 2023-02-15 15:36:10 +0000

russff gravatar image

updated 2023-02-15 15:49:01 +0000

My generator sends out emails. It doesn't support encryption, just standard username/password authentication. I stopped getting emails a few months ago (it has worked for 7 years prior to this). I've tried 4 different SMTP servers and 3 different ISPs and no luck, so i figured it had to be something with the generator. So I setup Paperclip to find out why and wiresharked it. This was the captured file after the generator sent an email: https://drive.google.com/file/d/1A9Ze...

The generator is .176, Paperclip is .39 (SMTP listens on port 2525) Line 9 the generator sends the AUTH PLAIN command (with username 'generator', which is correct) and line 10 paperclip responds with 501 error and then the generator QUITs. I don't know how to fix this, I obviously can't change the generator email client, did something change in SMTP format recently where it stopped recognizing ESMTP commands like AUTH?

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Closed for the following reason question is off-topic or not relevant by grahamb
close date 2023-02-15 17:03:40.262898

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You closed my question, but I found other similar questions relating to SMTP issues which were not closed like mine was. What was the particular issue with my post?

russff gravatar imagerussff ( 2023-02-15 17:14:38 +0000 )edit

Probably those other questions were about Wireshark and SMTP, e.g. dissection. Your issue appears to be about SMTP AUTH which is off-topic.

FYI, many SMTP servers will no longer accept plain text credentials for obvious reasons. Generally the move is to use OAuth or similar.

grahamb gravatar imagegrahamb ( 2023-02-15 17:20:38 +0000 )edit

This was the similar question that made me post mine, and you even responded to that one: https://ask.wireshark.org/question/12...

russff gravatar imagerussff ( 2023-02-15 17:24:17 +0000 )edit

That question seemed to involve Wireshark, yours doesn't apart from the incidental use when trying to discover why your SMTP AUTH is failing. You'll need to look into your SMTP server, maybe via application logs to see what's up, Wireshark is of no help here.

grahamb gravatar imagegrahamb ( 2023-02-15 17:44:08 +0000 )edit

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answered 2023-02-15 22:47:08 +0000

cmaynard gravatar image

As far as I can tell, papercut doesn't support SMTP AUTH. See: https://github.com/ChangemakerStudios...

See also: https://www.papercut.com/kb/Main/Emai...

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Asked: 2023-02-15 15:36:10 +0000

Seen: 151 times

Last updated: Feb 15 '23