5.5.4 HELO/EHLO argument "(null).gateway" invalid
As of this morning I get an error on all of my gmail accounts in Thunderbird.
An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: 5.5.4 HELO/EHLO argument "(null).gateway" invalid, closing connection. 5.5.4 https://support.google.com/mail/?p=helo y18sm36496522pfi.104 - gsmtp.
I have check my settings and all are correct. I am unsure about what's happening?
As of this morning I get an error on all of my gmail accounts in Thunderbird.
An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: 5.5.4 HELO/EHLO argument "(null).gateway" invalid, closing connection.
5.5.4 https://support.google.com/mail/?p=helo y18sm36496522pfi.104 - gsmtp.
I have check my settings and all are correct. I am unsure about what's happening?
Solution choisie
It fixed itself - so I'm not sure what happened or how.
Matt said
try disabling the conversations add-on and see if that helps.
Thanks for your suggestion Matt.
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Screenshot attached
try disabling the conversations add-on and see if that helps.
Solution choisie
It fixed itself - so I'm not sure what happened or how.
Matt said
try disabling the conversations add-on and see if that helps.
Thanks for your suggestion Matt.