I have two accounts: 1. [email protected] and 2. [email protected]. Both accounts have 2-factor authentication enabled. I am a Super Admin for #2. I would like to add account #2 G Suite work email to account #1.

I cannot get past the SMTP step (Send mail through your SMTP server).

Everything I read is related to allowing "less secure apps". However, our current setting is set to "Allow users to manage their access to less secure apps"

First, I don't understand how my personal Gmail is a "less secure app" and second I don't know where to go from here.

Has anyone successfully done this?

  • The reason your personal email is a "less secure app" is because you cannot put in a 2-factor code to send SMTP messages.
    – Moshe Katz
    Jan 30, 2017 at 3:55
  • 2
    Have you tried setting up an app specific password for SMTP? Jan 30, 2017 at 11:17
  • Really you should be using two factor auth and then assigning app passwords to things like gmail send through g-suite SMTP. This avoids downgrading security for less secure apps (which, I think, google is phasing out anyway)
    – fixjunk
    Oct 16, 2019 at 20:08

2 Answers 2


I detailed how to do this step-by-step in a medium post: https://medium.com/@csaba.apagyi/using-g-suite-gmail-from-your-personal-gmail-explained-step-by-step-6509187a710e

As for SMTP:

  • Enable “Allow less secure apps to access account” option for users in G Suite admin
  • Allow less secure apps in the G Suite account
  • Ensure POP and SMTP are not disabled in G Suite admin
  • Configure SMTP in the main Gmail account

You can find links to support pages for each step in the post linked above.

  • Great, this worked. You will also have to enable "Less secure app access" in the specific G Suite account Jun 11, 2019 at 10:34
  • 1
    It's one of the steps above :) "Allow less secure apps in the G Suite account" Jun 11, 2019 at 12:00
  • +1. Also for anyone wondering steps 1 and 2 are different and both required. Google also turns off step2 if you dont use it. quote: Google will automatically turn this setting OFF if it’s not being used
    – wal
    Nov 2, 2020 at 3:07
  • They are different, see: support.google.com/a/answer/6260879?hl=en and myaccount.google.com/u/3/lesssecureapps?pageId=none. Both were required when I wrote this answer. Nov 2, 2020 at 10:23

I need your help. I was facing same problem. and also Enable POP and IMAP and Allow less secure apps in the G Suite account from G Suite. At the user end also Enable POP and IMAP. But still now problem not solved.

Thanks Riton

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