We do not generally include our clients' email address or phone number on the return unless it's one of those states that require them.  Even then, we end up leaving out digits where these phone numbers have more than 10 digits.  We have to do that even with our phone number since we are based overseas.  That will not make any difference - I've never in my career in expat tax (for longer than I care to count) known the IRS or state DoR calling taxpayers overseas.

First and foremost, it's a formatting issue in Intuit's programs and they do not care to fix it even though there is no lack of complaint from me and others.

TBH, even the IRS' system is not well set up to deal with foreign contact details.  The IRS' PTIN service is able to accommodate foreign addresses and phone numbers.  However, when it comes to the filing system, they don't do so well.  More likely than not, clients' foreign addresses are truncated on the IRS' system and that is one of the most common causes for verification failure.