ESP32-CAM – Email Delivery Problem

Q&A Forum › Category: ESP32 › ESP32-CAM – Email Delivery Problem

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Peter asked 2 years ago

I’m unable to email images with the Motion_Detector_Photo_Email_NEW.ino code from the ESP32-Cam Project book.
I’m using outlook.com, with the smtpServer “smtp.office365.com” and smtpServerPort 587. The destination is a gmail account.
The ESP_Mail_Client.h library version is 1.6.4.
The code compiles without error.
Despite trying different destinations, the error message is the same
Sending message header…
> C: send message header
< S: 250 2.1.0 Sender OK
< S: 501 5.5.4 Invalid arguments
Error, set recipient failed
I use the same smtpServer setting in another program: https://randomnerdtutorials.com/esp32-cam-send-photos-email/ which is based on the ESP32_MailClient.h librarywithout fault.
Thanks

9 Answers

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Sara Santos Staff answered 2 years ago

Hi.
What is the ESP32 version you have installed in Arduino IDE?
Tools > Boards > Boards Manager > ESP32 and check your version, so that I can test the sketch with the same settings as your setup.
Regards,
Sara

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Peter answered 2 years ago

Hi Sara,
The Arduino board setting is ‘AI Thinker ESP32-CAM’.
Peter

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Sara Santos Staff answered 2 years ago

No.
I mean the ESP32 boards version that you have in Tools > Boards > Boards Manager… Then search for ESP32 and check the version.

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Peter answered 2 years ago

I have esp32 by Espressif Systems version 1.0.6 installed.

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Sara Santos Staff answered 2 years ago

Hi again.
I just tested the code and it is working fine for me.
What are you inserting in the emailSenderPassword field? Are you using the email password or an app password? I never tested with outlook, but I think you need to use the app password. It would also be a good idea to try to update the library as well and test the code again.
I hope this helps.
Regards,
Sara

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Peter answered 2 years ago

Hi Sara,
It does seem the problem is with Outlook. The camera running the other Outlook program also stopped this morning.
The machine usage of the account restricted access and needed verification by the account holder to remove the restriction.
I’ve completed that, and hopefully, the account will be functioning soon.
If I don’t have any joy with Outlook, I’ll try the Gmail option from the book.
Thank you very much for your help.
Regards,
Peter

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Sara Santos Staff answered 2 years ago

Ok.
Then, let me know the results.
Regards,
Sara

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Peter answered 2 years ago

Hi Sara,
I have cleared the problem by using gmail with an app pasword as laid out in the eBook.
A lesson well learnt.
Thank you.
Peter

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Sara Santos Staff answered 2 years ago

Ok, great. I’m glad the issue is solved.
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara