I manage a domain on a shared server (for this example justmine.com). I have BIS set up so I can send mail and receive it from my address on this domain (me@justmine.com).

I'd like to set up a SPF record for this domain. I know what out-going servers to specify for mail sent by me from the domain's shared server.

What can I do to include a BIS smtp server name in the SPF record? How static are the BIS outbound server names?

TIA!

Fred / phrider

PS: I'm using T-Mobile, if it matters.

Based on a little testing, the SMTP is NOT static:
Try #1: 216.9.248.52 smtp05.bis.na.blackberry.com
Try #2: smtp02.bis.na.blackberry.com [216.9.248.49]
Try #3: [216.9.248.52] (helo=smtp05.bis.na.blackberry.com)


.

Does this help you? This is the SPF entry I found after doing whois/nslookup for tmo.blackberry.net.

v=spf1 ip4:206.51.26.0/24 ip4:193.109.81.0/24 ip4:204.187.87.0/24 ip4:216.9.240.0/20 ip4:206.53.144.0/20 -all

Thank you.

Now to see if I can narrow that to the *.bis.na.blackberry.com servers....


This link seems to provide some specifics: fudge.org » Blog Archive » SPF records for Blackberry Internet Service
Two options:
Option 1
ip4:216.9.248.0/24

Option 2
a:smtp01.bis.na.blackberry.com
a:smtp02.bis.na.blackberry.com
a:smtp03.bis.na.blackberry.com
a:smtp04.bis.na.blackberry.com
a:smtp05.bis.na.blackberry.com

Interesting: Yahoo emails sent out via BIS do not come from one of the blackberry.com IPs, but from something like smtp101-mob.biz.mail.re2.yahoo.com

Since the BIS upgrade, the chain of servers before a regular (non-Yahoo) email leaves the Blackberry.com network is longer, but the last internal step in the chain is still smtp0X.bis.na.blackberry.com

What's the story for Gmail? And for hosted Yahoo or Gmail domains?

Sent myself email from Gmail account on blackberry, it went through GMail mail server.