S SiempreTuna Android Expert Aug 29, 2013 #2 This is most likely an issue with your SMTP (outgoing mail) server. Some networks only support their own SMTP server. For example, O2 and T-Mobile in the UK use these: smtp.o2.co.uk smtp.t-email.co.uk Try googling SMTP and the name of your network. You probably want to check the port number at the same time as well.
This is most likely an issue with your SMTP (outgoing mail) server. Some networks only support their own SMTP server. For example, O2 and T-Mobile in the UK use these: smtp.o2.co.uk smtp.t-email.co.uk Try googling SMTP and the name of your network. You probably want to check the port number at the same time as well.