smtp.frontier.com and exim4

[mike.j...@att.net]

I'm having no luck sending email through frontier.com.
Their setup page says to use port 465 but that causes their server to disconnect immediately.
Using port 587 I get a lot further but it dies on
'SMTP>> MAIL FROM:<> SIZE=3093
<>: Sender address rejected: Access denied'
Though I've played with lots of things I'm pretty sure the only thing that's changed from when all was working well with SuddenLink.net is:
/etc/exim4/passwd.client:
smtp.frontier.com:mikemcc...@frontier.com:myPassWd
/etc/exim4/update-exim4.conf.conf:
dc_smarthost='smtp.frontier.com::587'
and /etc/email-addresses:
root: mikemcc...@frontier.com
mike: mikemcc...@frontier.com

If anyone has exim4 working with frontier.com or simply has suggestions related to what I'm missing I'd love to hear it as I've been chasing this for a couple of weeks now.
Thanks,
Mike

[Greg Wooledge]

On Sat, May 07, 2022 at 01:52:41AM +0000, mike.j...@att.net wrote:
> Their setup page says to use port 465 but that causes their server to disconnect immediately.

Sounds like a call to their tech support may be appropriate.

> Using port 587 I get a lot further but it dies on
> 'SMTP>> MAIL FROM:<> SIZE=3093
> <>: Sender address rejected: Access denied'

Well, that's crystal clear. Fix your envelope sender address. You're
not sending bounces, right? Then the envelope sender shouldn't be the
empty string.