New phone: Alactel One Touch S'Pop/4030X. Android 4.1.1. Email 4.1. Following the recently updated Plusnet setup guide for Android mail leads to a faulty smtp configuration. http://www.plus.net/support/email/setup/android-setup.shtml I have repeated the setup following those instructions several times, reading all the text and notes. Always the same result. In the explanation below I am using firstname.lastname@example.org in place of the real address. IMAP works. SMTP does not. Messages stay in the Outbox. They will not send. I found where send is failing. The phone does connect to the Plusnet server, but the smtp session fails as follows: MAIL FROM: <birdseed> 550 <birdseed> invalid address The Plusnet mail server requires an email address there. This is using Thunderbird: MAIL FROM: <email@example.com> 250 <firstname.lastname@example.org> sender ok I have tried changing every option I can find in the Androied Email client to 'email@example.com'. None solve the problem. Android Email appears to be using the IMAP username in the MAIL FROM: command. This leads to a problem. * IMAP login requires 'birdseed+nigel' * MAIL FROM requires 'firstname.lastname@example.org' (any email address with a valid domain) A single string can't be both at the same time. So the question: Is there any way with this phone to configure the Android Email client to use birdseed+nigel as the username and email@example.com in the MAIL FROM command ? Either I missing something obvious, or this is a problem affecting relatively few people. If this was a general problem with Android Email and Plusnet smtp, it would very conspicuous. Some bits of additional information: I tried the MAIL FROM behaviour of a few major smtp servers. I found just one that did not require an email address, gmail. K-9 mail works. So I am not stuck for a solution. But this is weird enough to enquire about. This is the only Android phone I have. I can't easily compare to another working Android Email setup.