Office 365 emails labelled as spam by BT Internet

[simpsonj]

Anybody having their Office 365 emails rejected as spam by btinternet.com addresses? Our Head sent out a few emails over the weekend to governors with btinternet email addresses, and got a reply stating that 'btinternet.com suspects your message is spam and rejected it'. Nothing in the email would make it seem like spam (multiple lines, sensible subject, no attachments), so other than asking recipients to whitelist our domain, I'm stuck for ideas.

[Steve21]

Have you got a lot of disclaimer blurb/signature spam on the bottom of your outgoings? Sometimes that flags on some systems, and generally is fixed by just removing it when sending said email out. Might be worth a try

 

Steve

[FN-GM]

Also worth checking you have the SPF record setup correctly.

 

It should be:

 

Type Priority Host name Points to address or value TTL

TXT - @ v=spf1 include:spf.protection.outlook.com -all 1 Hour

[localzuk]

Yup, we've seen this too.

[CAWJames]

We have too, btinternet.com suspects your message is spam and rejected it.

 

Has anyone opened a case on the O365 portal? I am going to do that now I know other people are getting it.

[simpsonj]

We do have a disclaimer, but it's automatically added to all outgoing emails, with no option to disable it given to users...

 

I'll see if I can add an exception for certain accounts. Thanks for the heads up!

[Oaktech]

We've been having it to Virgin/NTLWorld and BT.

 

We've just told the governors to stop using crap ISP mail and to use the google apps domain email addresses we've given them FOR THIS VERY REASON!

[CHM-ITServices]

I've had a few over the weekend too.

[CAWJames]

Just heard back from O365, not their problem! Talk to BT, so onto that now, but won't hold my breath.

 

We are getting quite a few of these bounce-backs now

[simpsonj]

Seemed to have solved it by adding an exception to our Disclaimer policy so that any emails sent to a btinternet.com domain don't have the disclaimer applied. Not ideal, but a useful workaround for the time being.

[CHM-ITServices]

Seemed to have solved it by adding an exception to our Disclaimer policy so that any emails sent to a btinternet.com domain don't have the disclaimer applied. Not ideal, but a useful workaround for the time being.

 

CDheers for the workaround. I'll give it a go!

[Steve21]

Seemed to have solved it by adding an exception to our Disclaimer policy so that any emails sent to a btinternet.com domain don't have the disclaimer applied. Not ideal, but a useful workaround for the time being.

 

Aye it's a common issue with some of the home addresses that don't have good business emails

 

Generally you'll find if you reduce the number of "privacy, secure, disclaimer, prohibited, secure" wordings down to a minimum it'll accept it, or as you said fully removed

 

Steve

[simpsonj]

Nope, whilst emails from my Office 365 account reach btinternet.com addresses just fine, the Headteacher's emails are being rejected...

[ajos1]

-

 

I wonder if BT use backscatterer as part of it spam checking and this is the main issue.

 

- - - -

 

Mail that went through EUR01-HE1-obe.outbound.protection.outlook.com 104.47.0.123 gets to BT.

 

- - - -

 

Mail that uses EUR02-HE1-obe.outbound.protection.outlook.com 40.107.1.114 does NOT get to BT.

 

I used Email Header Analyzer, RFC822 Parser - MxToolbox on one of the weekends rejected messages and it suggests EUR02-HE1 is on a blacklist.

 

Reason for listing - Sorry 40.107.1.114 is blacklisted at

Backscatterer.org powered by UCEPROTECT

 

Blacklist started 02nd Nov and ends in 4 weeks time.

 

- - - -

[MrFrostmaul]

Our domain has been blacklisted by BT as well, have tried adding an exception for our disclaimer for @btinternet.com email's but no joy here with their support useless in cases like this.. Edited November 7, 2016 by MrFrostmaul

[bigjb]

Having the same problem here. Might be worth having a look at BT email - Best practices for postmasters and senders of bulk mail | Help | BT.com Help and checking some of the points

[simpsonj]

Has anyone got a simple set of instructions to whitelist an email address or domain for bt internet/yahoo? Without an account myself, and the BT Internet site having out of date information, I'm struggling to instruct our governors on how to unblock school messages!

[Techykev]

We have also just had this issue reported and I have just carried out some tests on my own BT account by sending three emails from three different school accounts. The first was from the school support email address and that arrived in my BT inbox almost straight away, the second from a test teacher account arrived after a 15 min delay, the third from my school admin account also took 15 mins but went straight into Spam. Unlike the other reports I've had the Spammed mail did not get a "bounce back" saying that BT had rejected it completely as a suspected spam.

 

So in my on-line BT account I clicked on "Settings" (just under the Search Bar) then "Mail" in the L/H column and then selected "Safe Senders" and added @my-school.org to the safe senders list. Hope this helps SimpsonJ.

 

My tests all now arrive safely in my inbox, question is how to pass this info on to all of our parents and governors who use BT?

[Mr.Ben]

I've been seeing this on the tenancies that we support as well (roughly 6,000 Staff members in total). We are signing our mail with dkim.

 

Blueyonder (Virgin), BTinternet and AOL addresses are affected.

 

Our advice is that our sending domains in question should be added to the parents safe senders list, and the mails seem to get through.

Edited November 24, 2016 by Mr.Ben

[Blue_Cookeh]

We've not come across this issue, have you guys used the tools on MX Lookup Tool - Check your DNS MX Records online - MxToolbox to check Blacklists, SPF records etc are all in order?

[simpsonj]

Couldn't find any issues using that site @Blue_Cookeh but thanks for the heads up

 

Only one email address (my headteacher's) was blocked, and we just added him to the Governor's contact list and it sorted the issue.

[Mr.Ben]

We have configured dmarc and dkim as well for our custom domains. We don't have any blacklistings, so I can only assume that this is a problem at the recipients end.

 

All three recipient systems only seem to be blocking emails that have been sent to multiple recipients. The blueyonder reject response is 'multiple recipients from null sender rejected', but we are providing both a 5321.MailFrom and 5322.From address.

 

Individual emails are getting through to parents, but when sent in bulk they are rejected.

[ItsOggy]

Hi, did anyone figure this out?

 

When we email groups of parents our email is sent out via Office 365 High Risk Delivery Pool and thus not trusted or rejected from the likes of BTinternet, AOL and hotmail, I'm playing with signatures, disclaimers, have a case open with Office 365 and struggling to get to the bottom of it!

[CAWJames]

O365 blocks our bulk emails as well, and won't tell us why, as it is against their rules for combating spam to let people know how to beat the filters(makes sense really, but not overally helpful!)

 

We now use SendGrid for all bulk emails, and have a complicated rule to use a different outgoing connector for just our marketing/bulk email addresses. This isn't a feature of Exchange, to have separate connectors for different email addresses, but with a bit of Google Fu, got it to work. Now all normal email passes through O365 and all other bulk stuff through SendGrid.

[ItsOggy]

Hi, out of interest, what plan did you go for?