3cx free version fax server emails sent by 3cx.net

[NetAssure1234]

We are having issues with these emails going out and either being marked as spam or not even being delivered. It appears the mx record is not standard enough for some email hosting companies and so they reject the emails with the pdf attachments. But my question to the forum is:
What happens if the mail server for 3cx.net gets marked as a spammer? Then everyone using the free edition fax server will have their emails blocked until the domain is white listed and no one will ever know that the emails never arrived. So is there a way to go back and get the emails?
This particular customer is a Doctors office and gets hundreds of faxes a day.
So i guess my point is (and i know you will say pay up and get the paid version, which they will probably have to do) why does 3cx want this kind of liability by putting all these fax servers out of reach, where no one can manage and get the outbound faxes back. Seems to me, if you want to include the fax server then let everyone pick their own smtp server. Or just don't include it.

 

[SteveITS]

I would guess running their own SMTP service avoids a lot of "emails aren't sending" posts and support tickets. Many ISPs block port 25 outbound, people misconfigure it, etc.

I haven't used the 3CX fax service so I can't speak to any of the issues. Our SIP trunk provider has fax to email and it seemed easier to let them deal with it than get them to pass it through and configure it 3CX.

 

[Evolute IT]

The 3CX SMTP is built on Sendgrid. Which is mostly whitelisted.

I don't think you'll ever have an issue with that, but to prevent that 100%, yes: upgrade to Pro and use your own SMTP.

 

[cobaltit]

So i guess my point is (and i know you will say pay up and get the paid version, which they will probably have to do) why does 3cx want this kind of liability by putting all these fax servers out of reach, where no one can manage and get the outbound faxes back. Seems to me, if you want to include the fax server then let everyone pick their own smtp server. Or just don't include it.

Huh? A regular fax machine can queue faxes if out of paper and then die (or just lose power) and you can't retrieve your faxes so why do they sell them? I mean why would anyone sell anything that could possibly fail? 3CX is not liable for anything you choose to implement. If faxes are that important, then you pay more money for increased reliability or peace of mind. It's that simple. And if faxes are really that important, then you shouldn't be using 3CX for faxing at all. I never recommend 3CX faxing for anyone that does more than a handle of faxes. Internally we use 3CX fax but we get maybe 10 faxes a month, and the majority of those are just test faxes. And we have a dedicated fax service for our accounting folks (where faxing matters). This is not to knock 3CX but more FoIP in general.