[SGVLUG] problems sending email out via dslextreme

[Matthew Campbell]

Nice, thanks for passing on this secret sauce in case we run across
something similar.

Matt


---------
*Matthew Campbell*
Storage and Cloud Strategy
Office of the CTO

*Kaiser Permanente*
99 S. Oakland
Pasadena, CA 91101

626-564-7228 (office)
8-338-7228 (tie-line)
818-314-9897 (mobile phone)
Green Center 3-North, 031W29
---------
*kp.org/thrive <http://kp.org/thrive>*

On Fri, Jun 12, 2015 at 2:42 PM, Claude Felizardo <cafelizardo at gmail.com>
wrote:

> Hey I just noticed I have stopped getting email’s sent out from my
> computers at home.  Email on laptops and desktops work still, I think it’s
> my fileserver and probably my NAS that are affected.  Seems to have stopped
> around June 3rd.  Only took 9 days to notice - I normally get several
> emails every day.
>
> Looking through dslextreme’s website and it says I have outbound port 25
> enabled but did they change something?
>
> Ah, found it in my syslog file:
>
> Jun  3 16:00:20 xxxxxxxxx postfix/smtp[15084]: 2E42784E27:
> to=<xxxxx at xxx.xxxt>, orig_to=<xxx>, relay=smtp.gmail.com[74.125.129.108]:587,
> delay=2.8, delays=0.02/0.12/2.7/0, dsn=4.7.8, status=deferred (SASL
> authentication failed; server smtp.gmail.com[74.125.129.108] said:
> 535-5.7.8 Username and Password not accepted. Learn more at?535 5.7.8
> https://support.google.com/mail/answer/14257 j7sm1765852pdp.83 - gsmtp)
>
> Note hostname and email addrs have been xxx’d out.
>
> So I know that dslextreme will no longer be using google for their mail
> browser but I guess it’s affecting outbound email.  I’m going to have to go
> through every device at home and confirm they can still send email out.
> Anyone know how to reconfigure postfix to specify the username and
> password?  Looks like I switched from AT&T DSL to DSLExtreme Sep 2013 and I
> have not really had to reconfigure anything in that time.  Don’t see
> anything in /etc/postfix, been searching for google|gmail|dslextreme in
> /etc but can’t find anything.
>
> Found this on the dslextreme website
>
> https://www.dslextreme.com/support/kb/email-and-newsgroups/error-550
>
> found the file.
>
> I had to edit /etc/postfix/main.cf and change the following entires:
> relayhost=[smtp.dslextreme.com]:587
> smtp_sasl_password_maps=hash/etc/postfix/sasl/passwd.dslextreme   <—
> contains my info
>
> ————-
>
> Okay, rewind.  I opted to reconfigure to use gmail since I’m planning on
> ditching dslextreme soon and just use my regular gmail account but since I
> have two factor authentication set up, I had to create a dedidicated
> application password.  That was a chore trying to find it on gmail’s
> website then figure out which settings and all.
>
> yup just got 9 days worth of security scans to my inbox and another 8
> delayed weather reports sent as sms and email.
>
> Summary of what I had to do
>
> 1) Edit /etc/postfix/main.cf
>
>         relayhost=[smtp.gmail.com]:587
>         smtp_sasl_password_maps=hash:/etc/postfix/sasl/passwd
>
>
> 2) edit /etc/postfix/sasl/passwd
>
>         [smtp.gmail.com]:587 name:password      <— unique application
> password generated by gmail web site
>
> 3) Regenerate map file
>
>         postmap hash:/etc/postfix/sasl/passwd
>
> 4) Make sure files are set so only root can read using chmod 600
>
> 5) Check config and restart if good
>
>         service postfix check
>         service postfix restart
>
> 6) Rinse and repeat until it’s working.
>
>
> Claude
>
>
>
>
>
>
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