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Gmail SMTP Relay Problem

I am facing this problem since 11/03/2017 until now:
Quote    host smtp-relay.gmail.com[74.125.200.28] said: 550-5.7.0
    Mail relay denied [175.140.19.146]. Invalid credentials for relay for
    550-5.7.0 one of the domains in: elkarte.sch.my, sch.my (as obtained from
    HELO 550-5.7.0 and MAIL FROM). 550-5.7.0 Email is being sent from a domain
    or IP address which isn't registered 550-5.7.0 in your G Suite account.
    Please login to your G Suite account and 550-5.7.0 verify that your sending
    device IP address has been registered within 550-5.7.0 the G Suite SMTP
    Relay Settings. For more information, please visit 550 5.7.0
    https://support.google.com/a/answer/6140680#maildenied j75sm1839186ita.2 -
    gsmtp (in reply to MAIL FROM command)

I can't really find a working solution to this since the error is referring to G Suite account while I am using free Gmail account. I cannot setup and send any email directly from my server since I have no static IP and my ISP is blocking port 25 (outgoing).

I do not find gmail info useful so far as they are all now referring to G Suite. Even using G Suite, it still failed though that may be my failure to set properly.[1].

If anybody found any forum/site discussing a how to/solution to this, do link me to it as so far I haven't found one.
I have tested with one of my G Suite accounts but failed though I may have set it wrong.
Last Edit: March 30, 2017, 05:33:33 am by ahrasis

Re: Gmail SMTP Relay Problem

Reply #1

I resolved this by removing old settings and configure a new SMTP Relay in my G Suite account.

To note, Gmail SMTP Relay as per my new reading is only available to G Suite account, so no more relay for non account holder a.k.a. free gmail account.[1].

Sorry to bother you guys, but I thought somebody may have some interest on this.[2].
I tested with free account too as previously it was working
One day maybe :P