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Re: SMTP Invalid Address (501 5.5.4)

From: Daniel Stenberg <>
Date: Sun, 18 May 2014 22:29:27 +0200 (CEST)

On Fri, 16 May 2014, Tom Sparrow wrote:

> Can we have some fallback for trying out "EHLO" again with a dummy
> valid hostname in case of EHLO failure with "501 5.5.4 Invalid Address".
> This will ensure email delievery without reinitiatiating complete email
> sending process.

I haven't gone back to study what the RFCs says and given that nobody else has
responded, perhaps you can write up a patch and suggest a way as that might be
easier for people to respond to and comment on?

List admin:
Received on 2014-05-18